Question 1

To make 1.0 L of a 10. g NaCl/L solution, 10. g of NaCl is weighed and poured into a volumetric flask. What is the next step?

Accepted Answer

A)  The next step is to measure out 1.0 L of water, pour it into the container, and mix. 
B)  The next step is to fill the container up to the top of the flask. 
C)  The next step is to fill the container to the 1.0 L mark while swirling to mix. 
D)  The next step is to transfer the NaCl to a new flask. 
E)  None of these. The solute should always be added to the container after the solvent, not before. 
A)  The next step is to measure out 1.0 L of water, pour it into the container, and mix. 
B)  The next step is to fill the container up to the top of the flask. 
C)  The next step is to fill the container to the 1.0 L mark while swirling to mix. 
D)  The next step is to transfer the NaCl to a new flask. 
E)  None of these. The solute should always be added to the container after the solvent, not before.

Question 2

An example of this type of mixture is red blood cells in whole blood.

Accepted Answer

A)  homogenous mixture 
B)  suspension 
C)  colloidal dispersion 
D)  solution 
E)  solvent 
A)  homogenous mixture 
B)  suspension 
C)  colloidal dispersion 
D)  solution 
E)  solvent

Question 3

How does an electrolyte differ from a nonelectrolyte?

Accepted Answer

A)  Electrolytes are smaller than nonelectrolytes. 
B)  Electrolytes dissolve in water, while nonelectrolytes are insoluble in water. 
C)  Electrolytes are less polar than nonelectrolytes. 
D)  Electrolytes produce ions in solution while nonelectrolytes do not. 
E)  Electrolytes are more reactive than nonelectrolytes. 
A)  Electrolytes are smaller than nonelectrolytes. 
B)  Electrolytes dissolve in water, while nonelectrolytes are insoluble in water. 
C)  Electrolytes are less polar than nonelectrolytes. 
D)  Electrolytes produce ions in solution while nonelectrolytes do not. 
E)  Electrolytes are more reactive than nonelectrolytes.

Question 4

Is the solution of MgCl2 in water an electrolyte?

Accepted Answer

A)  Yes, because when MgCl2 dissolves, it forms ions 
B)  Yes, because the MgCl2 undergoes a chemical change in solution 
C)  Yes, because MgCl2 and water react with each other 
D)  No, because MgCl2 does not form ions 
E)  No, because MgCl2 in water does not conduct electricity 
A)  Yes, because when MgCl2 dissolves, it forms ions 
B)  Yes, because the MgCl2 undergoes a chemical change in solution 
C)  Yes, because MgCl2 and water react with each other 
D)  No, because MgCl2 does not form ions 
E)  No, because MgCl2 in water does not conduct electricity

Question 5

What type(s) of unit(s) are represented on this table?

Accepted Answer

A)  % mass/volume 
B)  mass/volume 
C)  moles/volume 
D)  equivalents/volume 
E)  both B and C 
A)  % mass/volume 
B)  mass/volume 
C)  moles/volume 
D)  equivalents/volume 
E)  both B and C

Question 6

If the semipermeable membrane only allows the passage of water, what process will to occur?

Accepted Answer

A)  nothing 
B)  mixing 
C)  dialysis 
D)  dilution 
E)  osmosis 
A)  nothing 
B)  mixing 
C)  dialysis 
D)  dilution 
E)  osmosis

Question 7

The function of a kidney is similar to which part of the diagram below?

Accepted Answer

A)  It is similar to the water because the body is primarily composed of water. 
B)  It is similar to molecule A because the kidney contains a lot of urea. 
C)  It is similar to molecule B because the kidney contains a lot of glycogen. 
D)  It is similar to the container, because the kidney's function is to hold urine. 
E)  It is similar to the semi-permeable membrane because the kidney's function is to remove waste products but retain proteins. 
A)  It is similar to the water because the body is primarily composed of water. 
B)  It is similar to molecule A because the kidney contains a lot of urea. 
C)  It is similar to molecule B because the kidney contains a lot of glycogen. 
D)  It is similar to the container, because the kidney's function is to hold urine. 
E)  It is similar to the semi-permeable membrane because the kidney's function is to remove waste products but retain proteins.

Question 8

A _______ has components that are evenly distributed throughout the mixture.

Accepted Answer

A)  homogenous mixture 
B)  heterogeneous mixture 
C)  pure compound 
D)  solute 
E)  solvent 
A)  homogenous mixture 
B)  heterogeneous mixture 
C)  pure compound 
D)  solute 
E)  solvent

Question 9

Why do kidney stones form?

Accepted Answer

A)  Calcium salt levels in the kidneys reach saturated levels and precipitate. 
B)  Magnesium levels in the kidneys reach saturated levels and precipitate. 
C)  Organic toxins build up in the kidney and precipitate. 
D)  Chloride ions reach saturated levels in the kidney and precipitate. 
E)  All of the above ions and molecules contribute to the formation of kidney stones. 
A)  Calcium salt levels in the kidneys reach saturated levels and precipitate. 
B)  Magnesium levels in the kidneys reach saturated levels and precipitate. 
C)  Organic toxins build up in the kidney and precipitate. 
D)  Chloride ions reach saturated levels in the kidney and precipitate. 
E)  All of the above ions and molecules contribute to the formation of kidney stones.

Question 10

Is ethanol, a polar organic molecule that can hydrogen bond, miscible with water?

Accepted Answer

A)  Yes, because they are both liquids 
B)  Yes, because they have similar polarities 
C)  No, because they are both liquids 
D)  No, because they have similar polarities 
E)  No, because they do not have similar polarities 
A)  Yes, because they are both liquids 
B)  Yes, because they have similar polarities 
C)  No, because they are both liquids 
D)  No, because they have similar polarities 
E)  No, because they do not have similar polarities

Question 11

Capsaicin is responsible for the heat of peppers. It is common practice to fry capsaicin in oil prior to eating. Which part of the capsaicin molecule forms intermolecular attractive force with oil, a nonpolar solvent?

Accepted Answer

A)  a 
B)  b 
C)  c 
D)  d 
E)  All of these interact with oil. 
A)  a 
B)  b 
C)  c 
D)  d 
E)  All of these interact with oil.

Question 12

How many grams of NaCl are in 350 mL of normal saline (0.9% NaCl)?

Accepted Answer

A)  3150 g 
B)  315 g 
C)  31.5 g 
D)  3.15 g 
E)  0.315 g 
A)  3150 g 
B)  315 g 
C)  31.5 g 
D)  3.15 g 
E)  0.315 g

Question 13

If A contains 3 mmol NaCl and 3 mmol glucose, while B contains 6 mmol NaCl, which of the following will occur?

Accepted Answer

A)  Water will flow from A to B. 
B)  Water will flow from B to A. 
C)  NaCl will flow from A to B. 
D)  NaCl will flow from B to A. 
E)  Nothing will happen. 
A)  Water will flow from A to B. 
B)  Water will flow from B to A. 
C)  NaCl will flow from A to B. 
D)  NaCl will flow from B to A. 
E)  Nothing will happen.

Question 14

A person receiving IV fluids must always be given a(n)

Accepted Answer

A)  analgesic. 
B)  hypertonic solution. 
C)  isotonic solution. 
D)  hypotonic solution. 
E)  transfusion. 
A)  analgesic. 
B)  hypertonic solution. 
C)  isotonic solution. 
D)  hypotonic solution. 
E)  transfusion.

Question 15

This substance in the blood regulates the amount of water in tissues and blood.

Accepted Answer

A)  glucose 
B)  urea 
C)  liver enzymes 
D)  potassium 
E)  serum albumin 
A)  glucose 
B)  urea 
C)  liver enzymes 
D)  potassium 
E)  serum albumin

Question 16

A student adds 0.250 L of 200 mM buffer stock solution to a volumetric flask and dilutes the stock to 1.0 L. What is the final concentration of the solution?

Accepted Answer

A)  0.11 mmol 
B)  110 mmol 
C)  11 mmol 
D)  50 mmol 
E)  5.0 mmol 
A)  0.11 mmol 
B)  110 mmol 
C)  11 mmol 
D)  50 mmol 
E)  5.0 mmol

Question 17

The function of dialysate is similar in function to which part of the diagram below?

Accepted Answer

A)  the semi-permeable membrane 
B)  container 1 
C)  container 2 
D)  molecule A 
E)  molecule B 
A)  the semi-permeable membrane 
B)  container 1 
C)  container 2 
D)  molecule A 
E)  molecule B

Question 18

Sugar is stirred into cold iced tea and only some dissolves. The rest remains a solid. This solution is

Accepted Answer

A)  miscible. 
B)  immiscible. 
C)  soluble. 
D)  insoluble. 
E)  saturated. 
A)  miscible. 
B)  immiscible. 
C)  soluble. 
D)  insoluble. 
E)  saturated.

Question 19

How many moles of glucose are in 0.82 L of a 0.13 M glucose solution?

Accepted Answer

A)  0.11 moles 
B)  0.33 moles 
C)  6.3 moles 
D)  1.9 moles 
E)  0.22 moles 
A)  0.11 moles 
B)  0.33 moles 
C)  6.3 moles 
D)  1.9 moles 
E)  0.22 moles

Question 20

Jane Doe's blood test showed that her iron is 125 mg/dL. How many g/L is 125 mg/dL?

Accepted Answer

A)  12,500 g/L 
B)  1.25 g/L 
C)  0.00125 g/L 
D)  125 g/L 
E)  1250 g/L 
A)  12,500 g/L 
B)  1.25 g/L 
C)  0.00125 g/L 
D)  125 g/L 
E)  1250 g/L

To make 1.0 L of a 10. g NaCl/L solution, 10. g of NaCl is weighed and poured into a volumetric flask. What is the next step?

An example of this type of mixture is red blood cells in whole blood.

How does an electrolyte differ from a nonelectrolyte?

Is the solution of MgCl₂ in water an electrolyte?

What type(s) of unit(s) are represented on this table?

If the semipermeable membrane only allows the passage of water, what process will to occur?

The function of a kidney is similar to which part of the diagram below?

A _______ has components that are evenly distributed throughout the mixture.

Why do kidney stones form?

Is ethanol, a polar organic molecule that can hydrogen bond, miscible with water?

Capsaicin is responsible for the heat of peppers. It is common practice to fry capsaicin in oil prior to eating. Which part of the capsaicin molecule forms intermolecular attractive force with oil, a nonpolar solvent?

How many grams of NaCl are in 350 mL of normal saline (0.9% NaCl)?

If A contains 3 mmol NaCl and 3 mmol glucose, while B contains 6 mmol NaCl, which of the following will occur?

A person receiving IV fluids must always be given a(n)

This substance in the blood regulates the amount of water in tissues and blood.

A student adds 0.250 L of 200 mM buffer stock solution to a volumetric flask and dilutes the stock to 1.0 L. What is the final concentration of the solution?

The function of dialysate is similar in function to which part of the diagram below?

Sugar is stirred into cold iced tea and only some dissolves. The rest remains a solid. This solution is

How many moles of glucose are in 0.82 L of a 0.13 M glucose solution?

Jane Doe's blood test showed that her iron is 125 mg/dL. How many g/L is 125 mg/dL?

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Exam 8: Solutions, Colloids and Membranes

To make 1.0 L of a 10. g NaCl/L solution, 10. g of NaCl is weighed and poured into a volumetric flask. What is the next step?

An example of this type of mixture is red blood cells in whole blood.

How does an electrolyte differ from a nonelectrolyte?

Is the solution of MgCl2 in water an electrolyte?

What type(s) of unit(s) are represented on this table?

If the semipermeable membrane only allows the passage of water, what process will to occur?

The function of a kidney is similar to which part of the diagram below?

A _______ has components that are evenly distributed throughout the mixture.

Why do kidney stones form?

Is ethanol, a polar organic molecule that can hydrogen bond, miscible with water?

Capsaicin is responsible for the heat of peppers. It is common practice to fry capsaicin in oil prior to eating. Which part of the capsaicin molecule forms intermolecular attractive force with oil, a nonpolar solvent?

How many grams of NaCl are in 350 mL of normal saline (0.9% NaCl)?

If A contains 3 mmol NaCl and 3 mmol glucose, while B contains 6 mmol NaCl, which of the following will occur?

A person receiving IV fluids must always be given a(n)

This substance in the blood regulates the amount of water in tissues and blood.

A student adds 0.250 L of 200 mM buffer stock solution to a volumetric flask and dilutes the stock to 1.0 L. What is the final concentration of the solution?

The function of dialysate is similar in function to which part of the diagram below?

Sugar is stirred into cold iced tea and only some dissolves. The rest remains a solid. This solution is

How many moles of glucose are in 0.82 L of a 0.13 M glucose solution?

Jane Doe's blood test showed that her iron is 125 mg/dL. How many g/L is 125 mg/dL?

Measuring Matter and Energy

Atomic Structure and Nuclear Radiation

Compounds and Molecules

Chemical Quantities and Chemical Reactions

Changes of State and the Gas Laws

Organic Chemistry: Hydrocarbons

Organic Chemistry and Biomolecules

Acids and Bases

The Reactions of Organic Functional Groups in Biochemistry

Carbohydrates: Structure and Function

Lipids: Structure and Function

Proteins: Structure and Function

Nucleotides and Nucleic Acids

Energy and Metabolism

Filters

Is the solution of MgCl₂ in water an electrolyte?