Hydrogen iodide decomposes slowly to H2

and I2
at 600K . The reaction is second order in
Question:
Hydrogen iodide decomposes slowly to H2 and I2 at 600K . The reaction is second order in HI
and the rate constant is 9.7 x 10^-6 M^-1s^-1 at 600K. If the rate constant is 5.4 x 10^-5…
Science

All flow of energy in an ecosystem will begin with this level Primary consumersSecondary

Question

All flow of energy in an ecosystem will begin with this level:

Primary consumers

Secondary

consumers

Autotrophs

Predators

Evolutionary separation of species due to a barrier such as continental drift is called _____.

diversion

vicariance

evolutionary drift

convergence

speciation

Most of the steps of the N biogeochemical cycle are carried out by

Man

Aquatic fungus

Soil bacteria

Green plants

The uptake of minerals by decomposers is referred to as

mineralization

immobilization

net mineralization rate

decomposition

When organic C production happens within a water body it is described as

Autochotonous

Allochotonous

Autogenic

Allogenic

Edge effects can___.

facilitate dispersal

consist of abiotic changes associated with a boundary

consist of biotic changes associated with a boundary

serve as barriers to dispersal

All of the above

Science

Discuss the 4 different classes of organic compounds

Include the chemical reactions that build and break them

Question

Discuss the 4 different classes of organic compounds. Include the chemical reactions that build and break them

down in your discussion.

Science

1) Spermine (structure shown) is a compound isolated from sperm Which of the following statements correctly

Question

1) Spermine (structure shown) is a compound isolated from sperm. Which of the following statements correctly

describes an aqueous solution of spermine?

NH2(CH2)3NH(CH2)4NH(CH2)3NH2

A)

The hydroxide ion concentration in the solution would be greater than that in pure water.

B)

The pH of the solution would be equal to that of pure water.

C)

The hydronium ion concentration in the solution would be greater than that in pure water.

D)

The solution would be acidic

2) The compound decanal contributes to the odor and flavor of an orange. Which of the statements concerning the structure of decanal is incorrect?

A)

Decanal is an aromatic compound.

B)

Decanal contains a carbonyl group on the first carbon of the carbon chain.

C)

Decanal contains a saturated chain of ten carbons.

D)

Decanal is an aldehyde.

Science

Need help with this please My Lab Results as follow Mass (g) of Copper gluconate

Question

Need help with this please:

My Lab Results as follow:

Mass (g) of Copper gluconate

1.0

Mass (g) of wrapper 0.7

Mass (g) of wrapper + Cu 0.8

Mass (g) of Cu 0.1

Mass (g) of gluconate 0.9

My question is as follows:

  1. Using your own lab results, show your calculations for your moles of copper produced. You must show all work to receive credit.
    Science

Read the label for ground beef below Discuss what stands out to you as a difference between the nutrition

Nutrition Facts
Serving Size 1 burger (151g)
Servings Per Container 6
Amount Per Serving
Calories 450
Calories from fat 340
% Daily Valuequot;
Total Fat 38g
58%
Saturated Fat 18g
90%
Trans Fat 1.5g
Cholesterol 100mg
33%
Sodium 460mg
19%
Total Carbohydrate 0g
0%
Dietary Fiber 0g
0%
Sugars lt;1g
Protein 26g
Vitamin A 2%
Vitamin C 2%
Calcium 8%
Iron 8%
. Percent Daily Values are based on a 2,000 calorie
diet. Your daily values may be higher or lower
depending on your calorie needs:
Calories
2,000
2,500
Total Fat
Less than
65g
80g
Sat Fat
Less than
20g
25g
Cholesterol
Less than
300mg
300mg
Sodium
Less than
2,400mg
2,400mg
Total Carbohydrate
300g
375g
Dietary Fiber
25g
30g
Calories per gram:
Fat 9 . Carbohydrate 4 . Protein 4
Science

52 Which of the following will increase the percent of HF that is converted to the fluoride ion in

Question

52. Which of the following will increase the percent of HF that is converted to the fluoride ion in

water?

(a) addition of NaOH

(b) addition of HCl

(c) addition of NaF

By adding NaOH, the percent of HF that’s converted to the fluoride ion in water will increase. The equilibrium will be moved to the right with the percent raise. NaOH is able to remove the hydrogen proton and convert it to a liquid via NaOH.

Science

Bloom Syndrome Bloom syndrome is a rare genetic disorder It is characterized by a short

Question

Bloom Syndrome

Bloom syndrome is a rare genetic disorder. It is characterized by a short

stature and a long narrow face with prominent nose and ears. There is also an increased sensitivity to light. People who have the disorder often develop rashes on their face, forearms, and hands when they have been exposed to the sun. In addition, these people often suffer from chronic obstructive pulmonary disorder (COPD) and have a higher chance of developing cancer.

The cause of this genetic disorder is a mutation in the BLM gene located on chromosome 15. The immediate effect of this mutation is that there is a defect in the functioning of the DNA helicase enzyme.

Below is a pedigree showing the genealogy of the BLM mutation in one family. What is the type of inheritance that causes this disorder? Justify your answer with two points (see attached).

What would be the effect of this mutation on DNA replication? What stage of the cell cycle would be most affected?

Science

Oxalate ion 2 C O2 4 − and permanganate ion MnO4 − react in aqueous basic solution to give carbonate

Question

Oxalate ion, 2 C O2 4 − , and permanganate ion, MnO4 − , react in aqueous basic solution to give carbonate

ion, 2 CO3 − , and solid manganese dioxide, MnO2. The unbalanced chemical equation is a 2 C O2 4 − (aq) + b MnO4 − (aq) + c OH − → x 2 CO3 − (aq) + y MnO2(s) + z H2O(l). What is the ratio a:c when the equation is balanced?

A. 3:2 B. 2:3 C. 1:1 D. 3:4 E. 1:2

Science

Part IRecently

there was an epidemic of Ebola virus infection in Western Africa. The deadly nature of the
PART 1
Ebola virus being systemic, attacks virtually all organs and tissues except for skeletal muscles and bones.
The virus causes hemorrhaging by releasing proteins that suppress the body’s…
Science

I cannot for the life of me figure out question A!

The question is directly related to the first table.
I left

Question

I cannot for the life of me figure out question A! The question is directly related to the first table. I left

Amino acids coded for by mRNA blank because I am not sure what I am supposed to put here. I thought that it should be the same as Amino acids in final protein chain, but question A seems to contradict this. Help please! I have been trying to figure this out for hours and it’s due tomorrow!

Thanks!

Kaitlyn Gebhard

DNA and Protein Synthesis
Hands-On Labs, Inc.
Version 42-0051-00-02 Lab Report Assistant
This document is not meant to be a substitute for a formal laboratory report. The Lab Report
Assistant is…
Science

Which of the following statements most accurately defines genomic imprinting?The genotype of the mother

Question

Which of the following statements most accurately defines genomic imprinting?The genotype of the mother

determining the phenotype of the offspring.

  • Inactivation of the allele from one parent and expression of the the allele from the other parent.
  • The alleles of one gene masking the dominant alleles of another gene.
  • A single gene affecting a single trait.
  • The inheritance of two or more genes close together on the same chromosome

Linked genes generallydo not follow the laws of independent assortment.

  • are polygenic.
  • show pleiotropy.
  • reflect a pattern of codominance.
    Science

I need help with the problems i haven’t highlighted on

1. Which of the following is a substitution reaction? A) I B) II C) III D) IV 2. Consider the following S N 2 reaction, Assuming no other changes, what is the effect on the rate, if the concentration of 1-chloro-3methylbutane is doubled?
A) No effect
B) It would double the rate
C) It would triple the rate
D) It would increase four times
E) It would reduce by half
3. For the reaction sequence below, identify the expected major product(s). A) I B) II C) III D) I and III E) II and III 4. Which of the alkenes shown below would produce a chirality center upon Markovnikov
hydrohalogenation? A) B) C) D) E) 5. For the following dihydroxylation reaction which of the following statements is correct
regarding the expected products? A)
B)
C)
D)
E) Equal amounts of I and II produced
Equal amounts of III and IV produced
Equal amounts of I and IV produced
Equal amounts of II and III produced
Equal amounts of I and III produced 6. Which of the following alkyl halides is essentially unreactive in an S N 2 reaction? A) I B) II C) III D) IV E) V 7. Rank the following compounds from most to least reactive in an S N 2 reaction. A)
B)
C)
D)
E) Igt;IVgt;IIgt;III
IIgt;Igt;IVgt;III
IIIgt;IVgt;Igt;II
Igt;IIIgt;IIgt;IV
IVgt;IIIgt;Igt;II 8. Which of the following correctly describes the product(s) of the reaction below? A)
B)
C)
D) Only one stereoisomer
An equal mixture of enantiomers
A roughly equal mixture of diasteromers
A roughly equal mixture of constitutional isomers 9. Predict the product(s) for the following reaction. A) Both I amp; IV B) II C) III D) IV E) Both II amp; III 10. Viridenomycin, shown below, is a polyene antibiotic that displays anti-tumor activity. Its
structural complexity and chemical instability have made it a challenging target for
organic chemists to synthesize. Ignoring the benzene ring, how many disubstituted Z
alkenes are present in viridenomycin? A. 1 B. 2 C. 3 D. 4 11. Rank the following from most to least stable. A) A, B, C B) C, B, A C) B, C, A D) B, A, C 12. Draw the major product of the following reaction. A B C D 13. Which of the following is a reasonable definition of a concerted reaction?
A) it is a reaction in which bond breaking occurs first
B) it is a reaction in which all bond-breaking and bond-forming occurs at the same time
C) it is a reaction in which bond forming occurs first
D) it is a substitution reaction
14. Which of the following is the strongest nucleophile? 15. In an addition reaction to an alkene, the π bond plays the role of:
A)
D) nucleophile
A and B B)
E) electrophile
B and C C) leaving group 16. The regioselectivity and stereospecificity in hydrohalogenation of an alkene is best described
as:
A)
Markovnikov orientation with syn-addition
B)
Markovnikov orientation with anti-addition
C)
anti-Markovnikov orientation with syn-addition
D)
anti-Markovnikov orientation with anti-addition
E)
Markovnikov orientation with both syn- and anti-addition 17. What is the expected major product for the following reaction? A) I B) II C) III D) IV E) V 18. Which of the following is the energy diagram for the following reaction? 19. Which of the following is the structure of the rearranged carbocation intermediate in the
following dehydration? 20. Which of the given reaction schemes would produce the molecule shown below? A)
D) Both A and B B)
E) Both B and C C) 21. Which of the following is the major product of the reaction shown? A) I B) II C) III D) IV 22. What is (are) the expected major product(s) for the following reaction sequence? A) I B) II C) III D) I and II E) I and III 23. Identify the major organic product generated from the reaction shown. A)
B)
C)
D) I
II
III
IV 24. For the reaction sequence below, identify the expected major products. A) B) C) D) 25. What is the expected major product of the reaction sequence shown below? A) I B) II C) III D) IV E) V 26. What is the expected major product for the following reaction? A) B) D) E) C) 27. What is the IUPAC name for the following compound? A) 3-Fluorobutane B) 2-Fluorobutane C) (S)-2-Fluorobutane D) (R)-2-Fluorobutane 28. What is the expected major product of the following reaction sequence? A) I B) II C) III D) IV E) V 29. What is the expected major product of the following reaction sequence? A) I B) II C) III D) IV E) V 30. What is the expected major product of the following reaction sequence? A) D) B) E) C)
Science

I need help with part 2 layers of the atmosphere

Running head: LAYERS OF ATMOSPHERE Subject
Name:
Institution: 1 Running head: LAYERS OF ATMOSPHERE 1. What is the basis for dividing the atmosphere into four layers?
It depend on the lapse rate…
Science

A consumer is directly facilitated by a positive interaction between its prey and another species This

Question

A consumer is directly facilitated by a positive interaction between its prey and another species. This

interaction is apparent competition.

True

False

When a keystone predator was removed from a biological community in Jamaica bay, there was an overall decline in the biodiversity. This is an example of _____ control.

top-down

bottom-down

Intermediate

a b

A group of interacting species that occur together at the same place and time is known as a(n)____.

species network

ecosystem

biome

community

interaction web

A keystone species can be best described as ?

an abundant species that may or may not affect other species

a rare or uncommon species that has a strong effect on its community

a species that takes up a great deal of space in a community

a common species that has a strong effect on its community

Allelopathy is a form of interference competition where one species of plant releases toxins to prevent another species of plant from growing

True

False

Science

Hi dear tutors? I need an electrochemistry manual

9-1 Experiment 9
Electrochemistry I – Galvanic Cell
Introduction: Chemical reactions involving the transfer of electrons from one reactant to
another are called oxidation-reduction reactions or…
Science

The RN asks the LPN to perform which priority intervention for a client in Thyroid

Question

The RN asks the LPN to perform which priority intervention for a client in Thyroid

Storm?

a. Administer IV fluids containing dextrose.

b. Provide a hypothermia blanket.

c. Maintain strict bed rest.

d. Administer humidified oxygen.

QUESTION 19

Which interventions would be appropriate for a client with Hyperthyroidism who has a nursing diagnosis of Ineffective coping? Select all that apply.

a. Provide fresh bedding and clothing as needed.

b. Provide small, well-balanced, frequent meals.

c. Reassure client that the symptoms will resolve with treatment.

d. Use a calm, reassuring approach.

e. Maintain a quiet, non-stressful environment.

QUESTION 20

Which instructions would the RN include in a teaching plan for a patient with a diagnosis of Pheochromocytoma?

a. Follow-up with the physician in one year.

b. Count the radial pulse for a full minute.

c. Increase consumption of carbohydrates.

d. Exercise vigorously twice a day

Science

Write about the following topics in 200 words each

1.. All animals are made out of cells. Living creatures can be single-celled or multicellular.
In multicellular animals, the condition of the cell chooses its ability. For example, red
platelets…
Science

Hi

I am buried in school work.
I need a 2 page apa citiated
paper on enivormental philosy differentiates
Running Head: ANTHOPOCENTRICISM VS. BIOCENTRISIM Anthropocentrism vs. Biocentrism
Name:
Institution:
Date: 1 ANTHOPOCENTRICISM VS. BIOCENTRISIM 2 Bicocentric v anthropocentric…
Science

Please help answer the following question about

Synthesize the following products from the starting materials that
compounds that contain no mo
agents and intermediates along your sy
aterials that are shown using organic
re than two carbons . More than one step will be required . Show all
ediates along your synthetic pathway .
4
Q
Science

Calcium sulfate is only sparingly soluble

CaSO4(s) ⇌ Ca2+(aq) + SO42-(aq)

For this type of

Question

Calcium sulfate is only sparingly soluble.

CaSO4(s) ⇌ Ca2+(aq) + SO42-(aq)

For this type of

dissolution reaction the equilibrium constant, also known as the solubility product, is denoted Ks.

In the reaction above, Ks = 4.9 x 10-6.

When an excess of the solid is dissolved in water what is the maximum concentration of Ca2+(aq) in mol L-1?

(Give your answer to at least TWO significant figures and do not include the units in the answer box. Hint: to help answer this question, first work out the mathematical equation for Ks in terms of the concentrations of the chemical species.)

Answer:

CaSoy (s )
2+
Initial
Ci
Calag) + 504 ( ag )
O
change
– S
+ S
+ S
Equilibrium
Ci -S
+ S
where squot; is
the motor solubility
For this reaction the solubility product is
of the sparingly…
Science

1 Write the formula of the conjugate base for acid

H2CO3.

Express your answer as an

Question

1. Write the formula of the conjugate base for acid H2CO3.

Express your answer as an

ion.

2. Calculate the [OH−] of each aqueous solution with the following [H3O+]:

stomach acid, 4.5×10−2M

Express your answer using two significant figures.

urine, 6.0×10−6M

Express your answer using two significant figures.

orange juice, 2.2×10−4M

Express your answer using two significant figures.

bile, 7.0×10−9M

Express your answer using two significant figures.

3.what is the balanced equation for the neutralization of each of the following.

H2SO4(aq) and KOH(aq)

Express your answer as a chemical equation. Identify all of the phases in your answer.

HCl(aq) and Al(OH)3(s)

Express your answer as a chemical equation. Identify all of the phases in your answer.

H2SO3(aq) and Mg(OH)2(s)

4. What is the chemical formula for the base cobalt(III) hydroxide?

Express your answer as a chemical formula.

The formula for the selenate ion is SeO42−. Predict the formula for selenic acid.

5. How many moles of Ba(OH)2 are present in 125 mL of 0.600 M Ba(OH)2?

Express your answer with the appropriate units.

Science

Subject Question physics maximum velocityYou are riding in an Elevator

Starting from rest, the

Question

Subject: Question physics – maximum velocity

You are riding in an Elevator. Starting from rest, the

elevator undergoes the following:

  1. The elevator accelerates from rest (v=0.0m/s) upwards from 5.0s at +2.0 m/s^2
  2. The elevator then coasts for 20.0s at 10.om/s (a=0m/s^2)
  3. Finally, starting at 10.00 m/s, the elevator changes velocity for 2.5 s at -4.00m/s^2

Question: Using slope, determine the magnitude of the maximum velocity reached by the elevator. Show your work

question to unreserve and browse other questions.
Vit graph of the elevator
V (mys )
10
5
25
27-5
Question:
Subject: Question physics – maximum velocity
Vmox = 10 m/s
You are riding in an Elevator….
Science

Review the following article

A Comparison of Current Prospective Payment System Methodologies in the United
Prospective payment system is defined as different payment methods for determining insurance
refund based on predetermined payment. It includes payments for hospitals such as for diagnosis
related…
Science

Which are the four types of bacteria ?

Question

Which are the four types of bacteria……………………..?

There are four types of bacteria found in the environment these include; Cocci (Micrococcus,
Staphylococcus) Bacillus, Pseudomonas and Spirochete.
The micrococcus has a spherical shape and is a…
Science

2 Which pigment is directly involved in the conversion of light energy to chemical energy during

Question

2.Which pigment is directly involved in the conversion of light energy to chemical energy during

photosynthesis?

3.What is the actual product of the Calvin Cycle? How many molecules of CO2 are needed to produce one molecule of this product? Name some of the molecules that are made from this final product.

4.What is the mechanism for ATP production during photosynthesis? How is it different from ATP production in cellular respiration? How is it the same?

Science

For this assignment I am to conduct a hazardous chemical briefing/presentation at my work This presentation is on

Question

For this assignment I am to conduct a hazardous chemical briefing/presentation at my work: This presentation is on

silica (in its crystalline form) which causes silicosis if inhaled which is a major hazard in the construction industry. I am not sure if this would be considered a hazardous chemical or if it will fit for the questions I must answer during my presentation. If it is not, I will chose something else so please let me know either way.

Note: I have already completed questions 1-5 to the best of my ability. I’m looking to verify my work and make sure I have done this assignment correctly. As for question #6 I am completely lost, any help with this question would be greatly appreciated.

1.) Please explain and show the molecular structure of silica or Silicon dioxide: (I’m looking for the natural crystalline form found in construction, that causes silicosis).

and or, the element Silicon and their relationship if that is easier or different.

2.) Identify the type of molecule for silica or Silicon dioxide? (Ionic or Covalent)

3.) Identification of whether the molecule is polar or non-polar?

4.)Relation of its chemical behavior to its structure?

5.) If it is a large molecule, the identification of one central atom and its VSEPR shape?

6.) Identification of at least three bonds within the molecule and their bond lengths and enthalpies?

Science

Good afternoon

I recently wrote a personal statement of purpose for admission to nursing

Question

Good afternoon,

I recently wrote a personal statement of purpose for admission to nursing

school and I would like for someone to please review and give feedback if necessary. I am not 100% confident about it. Thanks so much in advance! It is as follows:

Statement of Purpose

Nursing is more than a profession; rather it is an ever-changing model of care which provides exceptional service to others. Nursing provides a plethora of opportunities for growth and it requires continuous research and learning. This desire to learn, educate and provide service to others has moved me to want to grow in the field, both professionally and personally.
Science

Q34/35/36/37 From the picture below answer the following questions (Note Proximal to (P) at (S)

Question

Q34/35/36/37. From the picture below, answer the following questions: (Note…Proximal to (P), at (S),

and distal to (D) a stenosis).

At which point is pressure the lowest?

At which point is flow speed the lowest?

At which point is volumetric flow rate the lowest?

At which point is pressure energy the greatest?

a. P

b. S

c. D

d. P and D

e. None of the above

Please show your work and explain your answers.



Science

1 …

For each of the following molecules (a) determine the number of signals expected in its

1H NMR spectrum, (b)

Scanned by CamScanner Scanned by CamScanner Scanned by CamScanner Scanned by CamScanner Scanned by CamScanner Scanned by CamScanner

Science

Read the following article

The 5 Most Dangerous Foodborne

1. What is your opinion? Is it the severity of an illness that makes it dangerous? Or
the number of people sickened by it?
I believe that the severity of an illness is what makes it dangerous. For…
Science

A nonessential nutrientdoes not exist

all nutrients are essential

is made

Question

A non-essential nutrient

does not exist; all nutrients are essential

is made

in the body but must still also be obtained from the diet

is not needed by the body at all, by definition

can become conditionally essential if a precursor molecule is missing from the diet

Science

DUE SOON! only ONE question!! Just need help with this ONE

A. draw the skeletal structure cf the rnajer erganic preduct farmed when the given Grignard
reagent reacts with ethylene exide fellewed by a deute rated acid werlcup. fir B. d raw the skeletal structure at the majer erganic pred uct fa rmed when the given Grignard
reagent reacts with fermaldehyde fellewed by a deuterated acid werkup. Mali!
Science

Can someone please help answer these organic

PRELABORATORY QUESTIONS
1 . When oxidations are carried out with HI , CI 2Of , Usually excess oxidant is used . It is important to
quench this excess reagent before the reaction is worked up . What might you use to quench the ex
cess oxidant ?
2 . Why is Ci 20 , always used in acidic , not alkaline , solution
3 . Write a balanced equation for the oxidation of cyclohexane by hypochlorous acid , HCIO . Note : The
reduction product of hypochlorite ion is chloride ion . )
4 . . What is the structure of the organic product of the reaction of benzophenone with NaBH
5 . What safety precautions should be taken with NaBIL , ?
Science

In a cladogram clades are groups of related organisms In the past phylogeneticists built clades using the idea

Question

In a cladogram, clades are groups of related organisms. In the past, phylogeneticists built clades using the idea

of parsimony, that the pattern that uses the fewest evolutionary changes is the most likely to be correct. Today, with the use of computers and DNA sequences, the explanation that is thought to be the best is

Select one:

a. one that shows the most changes in nucleotide sequences.

b. one that eliminates any similar DNA sequences.

c. one that shows the DNA unique to that species.

d. one that shows the fewest changes in the nucleotide sequences.

e. still one that uses the same system of parsimony.

Science

What is PSA (Phenotypic Suppression Array)?Select one a

It’s a technique to make double deletions

Question

What is PSA (Phenotypic Suppression Array)?

Select one:

a. It’s a technique to make double deletions

in yeast mutant library to find genetic interactions

b. It’s a technique to find genetic interactions of a gene through its over-expression in yeast libraries

c. It’s a dissection technique to find gene function

Science

Cervical cancer disease i want the answers

disease name and bacteria or virus that causes the disease

1. Disease name and bacteria or virus that causes the disease?
Human papillomavirus (HPV) has been known to cause and/or complicate cervical cancer. Specifically,
HPV 16 and 18 are responsible for…
Science

I have attached a chemistry test

Please help me out!
1. What is the volume of a 12.2 g piece of metal with a density of 9.43 g/cm 3?
a. 12.2 cm3
b. 1.29 cm3
c. 0.773 cm3
d. 115 cm3
e. 9.43 cm3
2. Which of the following is most likely to be an ionic…
Science

Question 15 year old child requires amoxycillin suspension

125mg/5mL for an ear

Question

Question 1

5 year old child requires amoxycillin suspension 125mg/5mL for an ear

infection.

Express 125mg/5mL amoxycillin suspension as a % strength

A. 1.5 %

B. 2.5 %

C. 5.5 %

D. 12.5 %

Question 2 Express 240mg/5mL as ratio strength

A. 1:10

B. 1:5

C. 2:100

D. 1:20

Question 3 Express 125mg/5mL amoxycillin suspension as a % strength

A. 1.5 %

B. 2.5 %

C. 5.5 %

D. 12.5 %

Question 4

Betadine sore throat gargle® (conce) contains 7.5% w/v povidone iodine. The directions are to dilute 1mL of Betadine® to 20mL of water gargle.

• Part 1; What amount of povidone iodine is in 20mL of the diluted gargle?

A. 37.5mg

B. 75mg

C. 0.75g

D. 3.75g

Part B

Betadine Ready to Use® sore throat gargle contains 10mg/mL w/v povidone iodine. Directions are; gargle 15mL of Betadine ready to use® (RTU)

Part 2; Is the amount of povidone iodine in 15mL of Betadine ready-to-use® the same as 20mL of the diluted gargle?

Question 5

An RMO asks you to prepare one litre of a 1% solution of sodium chloride. However, you only have a 5% concentrated stock solution of NaCl available to you.

How much of the 5% stock solution is required to make 1L of a 1% NaCl aqueous solution?

A. 50mL

B. 100mL

C. 200mL

D. 250mL

Start with the final concentration required in 1 litre,

Step 2; How much of the stock solution contains 10g of NaCl

Question 6

A doctor has prescribed clonazepam capsules. The dose is 1.5mg once a day for 10 days.

Show how you would make sufficient capsules, each weighing 450mg, for this prescription.

Question 7

How much NaCl is required to make 50mL of a stock solution, so that if 5mL of this stock solution is taken and diluted to 3L the final concentration is 1: 10,000 w/v?

Question 8

Q. 19 If 500mL of a 1:200 solution of KCl is diluted to 1L, what is the final ratio concentration?

A. 40:1

B. 1:40

C. 400:1

D. 1:400

Science

Case StudyINITIAL QUESTION Mary a baccalaureate

APN ROLE SUGGESTION Answer:
As it is mentioned that, Mary is expert in the Pediatric, emergency, and surgical
nursing and she also has the work experience of fifteen years as a registered nurse….
Science

Would I be able to get some assistance on how I can break this down further or how to make what I need to say more

Question

Would I be able to get some assistance on how I can break this down further or how to make what I need to say more

compactable.

Mrs. Walker has a diagnosis of Alzheimer’s dementia, symptoms associated with this disease include changes to sensory, motor, awareness, consciousness, and personality. Results could include loss of appetite, inability to comprehend to eat, physically being unable to complete the task, difficulty swallowing, choking.
Science

I am allergic to __________________

therefore, I should not consume _________________.

Question

Example: I am allergic to sulfites; therefore, I should not consume polished rice.

I ate rare-cooked burger and I got very sick for a month. I probably got sick from ………………………………………………… (Genus, species and strain)

I cut lettuce on the only cutting board I have at home. I, then made and ate big plate of salad at lunch. What would the highly likely bacteria be that is remaining on cutting board from cutting raw chicken? …………………………………………………………… (Genus and species)

Name one microbial food poisoning that is caused by Gram-positive bacteria: ______________________________________ (Write disease condition or genus and species)

Write the specific term of bacteria that are given to intensively-farmed animals, as part of their feed, and make them mutate and become resistant to all antibiotics to the point of causing serious illness to humans.___________________

Science

If the pH of an aqueous solution is changed from 2 to 4 then which of the following is true?

(Select all that

Question

If the pH of an aqueous solution is changed from 2 to 4, then which of the following is true? (Select all that

are true.)

A.The hydrogen ion concentration will increase.

B.The hydrogen ion concentration will decrease.

C.The hydrogen ion concentration will change by a factor of 2.

D.The hydrogen ion concentration will change by a factor of 10.

E.The hydrogen ion concentration will change by a factor of 100.

F.The hydrogen ion concentration will change by a factor of 1000.

Science

Darwinian evolution means that the gene pool is changed Do you think the human race is continuing to evolve in a

Question

Darwinian evolution means that the gene pool is changed. Do you think the human race is continuing to evolve in a

Darwinian, genetic sense? Are the genes of our species changing? Do not just write yes or no, but explain why you think so. In addition, include in your explanation of how the mechanisms of evolution, such as natural selection, would or would not be at play.

Science

A practice quiz really need to check answers Thanks!

Unit #4 Quiz Review Sheet – Expeditions 16, 17, 18, and 19
This quiz consists of 15 to 20 multiple-choice questions, the vast majority of which are
based on the multiple-choice questions posted by…
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HELP PLEASE! ) $12 tip if you get all the answers correct

I need help with geography oceanography lab
OCEANOGRAPHY
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29. Eastern coast
Western coast
North
East
Western coast
Right of wind direction…
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Reflect how

billing and coding
regulations affect reimbursement in a healthcare organization.
Assess the

Question

Reflect how billing and coding regulations affect reimbursement in a healthcare organization. Assess the

impact of regulations on reimbursement in a healthcare organization and what seems to be working and what needs change.

Science

If 2 0 moles of a substance are dissolved in 2 0 liters of solution then the molarity of this solution

Question

If 2.0 moles of a substance are dissolved in 2.0 liters of solution, then the molarity of this solution

is:

0.5 M

1.0 M

1.5 M

2.0 M

A common stain remover is sold in concentrated form as 3M sodium hypochlorite (NaOCl). You need to create 400 milliliters of a 0.5M solution of sodium hypochlorite to fill a spray bottle. What volume of 3M sodium hypochlorite is needed?

15.0 mL

66.7 mL

133 mL

167 mL

Properties of a solution that depend only on the ratio of the number of particles of solute and solvent in the solution are known as:

intensive properties

extensive properties

colligative properties

chemical properties
Science

Read

In the Hunt Library, open and read the
Scientific
The Age-of-the-Earth Debate DQ Answer
The idea of this very old earth created in the near the beginning of 19th century through
geology and it was restricted by a gathering of Christian scientists…
Science

Write one paragraph for each of the

following questions.
This mean that each question its answer need to be a
Cell phones emit electromagnetic waves. These waves emanate from the phone while in use.
These radiations are in the microwave range. Electromagnetic waves contain several groups of
waves within…
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what mass of H must be reactes with

reaction :
Thermochemistry WS # 3
|Enthalpy and Chemical Reactions
\3 # 2 ( 8 ) + N 2 ( 8 ) 7 2 NH| 3 ( 8 ) + 2709 J
|1 . What mass of hydrogen must be reacted with excess nitrogen to produce 5000 . J of energy based on the
( ans 1 1 . 2 8 H 2 )
SEND
Science

How would you solve question 17 parts a and b?What would be the ideal concentration of barium? What

13. (7 pts) A 50.0 mL sample of 0.180 M Fe(NO3)2 is added to 50.0 mL of 2.0 M NaCN. What is the
iron(II) ion concentration in this system at equilibrium?
. (6 pts) The measured pH of a saturated Ca(OH)2 solution is 12.35. Calculate the experimental value
for the Ksp of calcium hydroxide.
15.(12 pts) a) How many grams of solid ammonium chloride must be added to 250. mL of 0.500 M
aqueous ammonia to give a buffer with a pH of 9.40? (assume no change in volume)
b) If 2.00 mL of 3.00M nitric acid is added to 50.0 mL of the buffer prepared in part a), what will be the
pH of the resulting solution?
nigho diff 10 0 800.0 x
16. (12 pts) 20.0 mL of 0.120 M H2A, a weak acid, is titrated with 0.180 M NaOH.
a) The pH after adding 10.5 mL of base is 4.88. Calculate the experimental value of Ka, for H2A.
b) What is the pH at the second equivalence point? Kaz for H2A is 5.9 x 10-9.
17. (8 pts) A solution contains 0.25 M NaF and 0.14 M K2SO4. Ba(NO3)2 is added slowly to the solution
to gradually increase the concentration of barium ions.
a) You want to precipitate the maximum amount of sulfate (as BaSO4), but not allow any fluoride to
precipitate. What is the ideal [Baquot;] in the solution in order to accomplish this?
solution?
b) At the [Baquot;] you calculated for part a, what percentage of the original sulfate ion will remain in the
18. Sketch the titration curve for the titration of 40.0 mL of 0.120 M H2CO3 with 0.180 M KOH. Be sure
to clearly label any endpoints and be sure to show the volume of titrant is at these endpoints. Also,
indicate what the pH will be at any half-way point(s).
Science

Geological

Question

Geological

Principles:

  • Principle of Superposition: In a sequence of sedimentary rock layers, each layer must be younger than the one below.
  • Principle of Original Horizontality: The surfaces on which sediments accumulate are nearly horizontal, therefore layers of sediment are also nearly horizontal when originally deposited
  • Principle of Original Continuity: Sediments generally accumulate in continuous sheets that are continuous laterally.
  • Principle of Cross-cutting Relations: If one geologic feature (dike, fault, erosional surface) cuts across another, the feature that has been cut must be older.
  • Principle of Inclusions: A rock unit that is included within another rock is always older. If a layer of sediment overlying an igneous rock includes pieces of the igneous rock, the sedimentary layer must be younger. If an igneous intrusion contains fragments of another rock (xenoliths), the igneous intrusion must be younger.
  • Principle of Faunal Succession: Fossil fauna (animals) and flora (plants) follow one another in a definite, recognizable order.

Science

Hello! I need help with this for my geology course

Find an article that interests you within the
Review of:
Origins of the supercontinent cycle
I reviewed an online article titled Origins of the supercontinental cycle (1). This article
provided a review of the concept of continents…
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