Question 1

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 E

Question 2

Which of the following is NOT a cause of renal failure?

Accepted Answer

A)  diabetes 
B)  heart attack 
C)  low blood pressure 
D)  severe dehydration 
E)  infection 
A)  diabetes 
B)  heart attack 
C)  low blood pressure 
D)  severe dehydration 
E)  infection C

Question 3

A nurse needs 500 mL of normal saline, 0.9% NaCl.The stock solution of NaCl is 18%.How much stock solution should be used to make the normal saline?

Accepted Answer

A)  0.25 
B)  2.5 mL 
C)  25 mL 
D)  250 mL 
E)  2500 mL 
A)  0.25 
B)  2.5 mL 
C)  25 mL 
D)  250 mL 
E)  2500 mL C

Question 4

We can predict whether a solute dissolves in a solvent with the rule "like dissolves like." This rule means that

Accepted Answer

A)  a solute with the same diameter as the solvent will dissolve. 
B)  a solute with the same phase as the solvent will dissolve. 
C)  a solvent with the same polarity as the solvent will dissolve. 
D)  a solute with the same mass as the solvent will dissolve. 
E)  a solute contains some of the same elements as the solvent it will dissolve. 
A)  a solute with the same diameter as the solvent will dissolve. 
B)  a solute with the same phase as the solvent will dissolve. 
C)  a solvent with the same polarity as the solvent will dissolve. 
D)  a solute with the same mass as the solvent will dissolve. 
E)  a solute contains some of the same elements as the solvent it will dissolve.

Question 5

Which pair of liquids is immiscible?

Accepted Answer

A)  hexane and water 
B)  water and methanol 
C)  methanol and ethanol 
D)  hexane and butane 
E)  ethylene glycol (HOCH2CH2OH)and ethanol 
A)  hexane and water 
B)  water and methanol 
C)  methanol and ethanol 
D)  hexane and butane 
E)  ethylene glycol (HOCH2CH2OH)and ethanol

Question 6

Which describes the dissolution of MgCl2 in water?

Accepted Answer

A)  MgCl2 → Mg+ + Cl2- 
B)  MgCl2 → Mg2+ + Cl22- 
C)  MgCl2 → Mg+ + Cl- + Cl 
D)  MgCl2 → Mg2+ + 2Cl- 
E)  MgCl2 → Mg+ + Cl- 
A)  MgCl2 → Mg+ + Cl2- 
B)  MgCl2 → Mg2+ + Cl22- 
C)  MgCl2 → Mg+ + Cl- + Cl 
D)  MgCl2 → Mg2+ + 2Cl- 
E)  MgCl2 → Mg+ + Cl-

Question 7

The cell membrane separates the interior of the cell from its surroundings, but it does allow the passage of some small molecules from regions of higher concentration to regions of lower concentration.This process is called

Accepted Answer

A)  osmosis. 
B)  diffusion. 
C)  dialysis. 
D)  dissolution. 
E)  reverse osmosis. 
A)  osmosis. 
B)  diffusion. 
C)  dialysis. 
D)  dissolution. 
E)  reverse osmosis.

Question 8

Ethanol dissolving in water is an example of a

Accepted Answer

A)  physical change because each molecule retains its structure and no bonds are broken. 
B)  chemical change because all bonds to ethanol are broken. 
C)  chemical change because new bonds form between the hydrogens. 
D)  physical change because ethanol only loses one hydrogen to water. 
E)  chemical change because ethanol has a charge in solution. 
A)  physical change because each molecule retains its structure and no bonds are broken. 
B)  chemical change because all bonds to ethanol are broken. 
C)  chemical change because new bonds form between the hydrogens. 
D)  physical change because ethanol only loses one hydrogen to water. 
E)  chemical change because ethanol has a charge in solution.

Question 9

The purpose of the kidneys is to

Accepted Answer

A)  oxidize drugs. 
B)  store cholesterol. 
C)  digest food. 
D)  remove waste products from blood. 
E)  store urine. 
A)  oxidize drugs. 
B)  store cholesterol. 
C)  digest food. 
D)  remove waste products from blood. 
E)  store urine.

Question 10

An order is given to administer 250.mg of furosemide, a diuretic, over the course of eight hours by IV.If a 500.mL bag contains 200.mg of furosemide, what flow rate, in milliliters per hour, should be administered to the patient?

Accepted Answer

A)  78 mg/hour 
B)  78 mL/hour 
C)  50 mL/hour 
D)  50 mg/hour 
E)  32 mL/hour 
A)  78 mg/hour 
B)  78 mL/hour 
C)  50 mL/hour 
D)  50 mg/hour 
E)  32 mL/hour

Question 11

Does gasoline, which is nonpolar, dissolve in 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 12

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 13

In the following diagram, A is ______ and B is ______.

Accepted Answer

A)  hypotonic; hypertonic 
B)  hypertonic; hypotonic 
C)  A and B are isotonic. 
D)  A and B are both hypotonic. 
E)  A and B are both hypertonic. 
A)  hypotonic; hypertonic 
B)  hypertonic; hypotonic 
C)  A and B are isotonic. 
D)  A and B are both hypotonic. 
E)  A and B are both hypertonic.

Question 14

A patient's blood test shows that his chloride level is 101 mmol/L.Convert this concentration to units of molarity.

Accepted Answer

A)  1010 M 
B)  101 M 
C)  10.1 M 
D)  1.01 M 
E)  0.101 M 
A)  1010 M 
B)  101 M 
C)  10.1 M 
D)  1.01 M 
E)  0.101 M

Question 15

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 16

Which of the following is NOT an electrolyte?

Accepted Answer

A)  Na+ 
B)  HCO3- 
C)  Mg2+ 
D)  HOCH2CH3 
E)  All of the above are electrolytes. 
A)  Na+ 
B)  HCO3- 
C)  Mg2+ 
D)  HOCH2CH3 
E)  All of the above are electrolytes.

Question 17

Which of the following does NOT occur when an electrolyte dissolves in water?

Accepted Answer

A)  A chemical change occurs. 
B)  The positive and negative ions separate from each other. 
C)  The positive ions interact with the oxygen of water. 
D)  The negative ions interact with the hydrogen of water. 
E)  The resulting solution conducts electricity. 
A)  A chemical change occurs. 
B)  The positive and negative ions separate from each other. 
C)  The positive ions interact with the oxygen of water. 
D)  The negative ions interact with the hydrogen of water. 
E)  The resulting solution conducts electricity.

Question 18

A technician needs to make 1.0 L of a 20 mM solution.How many milliliters of the 400 mM stock solution are needed?

Accepted Answer

A)  0.05 mL 
B)  0.5 mL 
C)  5.0 mL 
D)  50 mL 
E)  500 mL 
A)  0.05 mL 
B)  0.5 mL 
C)  5.0 mL 
D)  50 mL 
E)  500 mL

Question 19

Which statement describes one way in which osmosis and dialysis are different?

Accepted Answer

A)  Osmosis is the movement of molecules from low to high concentration, and dialysis is the reverse. 
B)  Dialysis is the movement of molecules from low to high concentration, and osmosis is the reverse. 
C)  Osmosis refers to the flow of solvent, whereas dialysis refers to the flow of small solutes. 
D)  Dialysis refers to the flow of solvent, whereas osmosis refers to the flow of small solutes. 
E)  In dialysis, colloids cannot cross the semipermeable membrane, but they can in osmosis. 
A)  Osmosis is the movement of molecules from low to high concentration, and dialysis is the reverse. 
B)  Dialysis is the movement of molecules from low to high concentration, and osmosis is the reverse. 
C)  Osmosis refers to the flow of solvent, whereas dialysis refers to the flow of small solutes. 
D)  Dialysis refers to the flow of solvent, whereas osmosis refers to the flow of small solutes. 
E)  In dialysis, colloids cannot cross the semipermeable membrane, but they can in osmosis.

Question 20

A technician adds 0.025 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 mM 
B)  110 mM 
C)  11 mM 
D)  50 mM 
E)  5.0 mM 
A)  0.11 mM 
B)  110 mM 
C)  11 mM 
D)  50 mM 
E)  5.0 mM

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

Which of the following is NOT a cause of renal failure?

A nurse needs 500 mL of normal saline, 0.9% NaCl.The stock solution of NaCl is 18%.How much stock solution should be used to make the normal saline?

We can predict whether a solute dissolves in a solvent with the rule "like dissolves like." This rule means that

Which pair of liquids is immiscible?

Which describes the dissolution of MgCl₂ in water?

The cell membrane separates the interior of the cell from its surroundings, but it does allow the passage of some small molecules from regions of higher concentration to regions of lower concentration.This process is called

Ethanol dissolving in water is an example of a

The purpose of the kidneys is to

An order is given to administer 250.mg of furosemide, a diuretic, over the course of eight hours by IV.If a 500.mL bag contains 200.mg of furosemide, what flow rate, in milliliters per hour, should be administered to the patient?

Does gasoline, which is nonpolar, dissolve in water?

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

In the following diagram, A is and B is .

A patient's blood test shows that his chloride level is 101 mmol/L.Convert this concentration to units of molarity.

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

Which of the following is NOT an electrolyte?

Which of the following does NOT occur when an electrolyte dissolves in water?

A technician needs to make 1.0 L of a 20 mM solution.How many milliliters of the 400 mM stock solution are needed?

Which statement describes one way in which osmosis and dialysis are different?

A technician adds 0.025 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?

Matter, Energy, and Measurement

Atomic Structure and Radioisotopes

Ionic and Covalent Compounds

Molecular Geometry, Polarity, and Intermolecular

Chemical Quantities and Introduction to Reactions

Chemical Reactions: Energy, Rates, and Equilibrium

Changes of State and Gas Laws

Acids and Bases, Ph, and Buffers

Introduction to Organic Chemistry:

Alcohols, Phenols, Thiols, Ethers, and Amines

The Carbonyl Containing Functional Groups

The Common Organic Reactions in Biochemistry

Carbohydrates: Structure and Function

Lipids: Structure and Function

Proteins: Structure and Function

Nucleotides and Nucleic Acids

Energy and Metabolism

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Exam 8: Mixtures, Solution Concentrations, and Diffusion

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

Which of the following is NOT a cause of renal failure?

A nurse needs 500 mL of normal saline, 0.9% NaCl.The stock solution of NaCl is 18%.How much stock solution should be used to make the normal saline?

We can predict whether a solute dissolves in a solvent with the rule "like dissolves like." This rule means that

Which pair of liquids is immiscible?

Which describes the dissolution of MgCl2 in water?

The cell membrane separates the interior of the cell from its surroundings, but it does allow the passage of some small molecules from regions of higher concentration to regions of lower concentration.This process is called

Ethanol dissolving in water is an example of a

The purpose of the kidneys is to

An order is given to administer 250.mg of furosemide, a diuretic, over the course of eight hours by IV.If a 500.mL bag contains 200.mg of furosemide, what flow rate, in milliliters per hour, should be administered to the patient?

Does gasoline, which is nonpolar, dissolve in water?

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

In the following diagram, A is ______ and B is ______.

A patient's blood test shows that his chloride level is 101 mmol/L.Convert this concentration to units of molarity.

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

Which of the following is NOT an electrolyte?

Which of the following does NOT occur when an electrolyte dissolves in water?

A technician needs to make 1.0 L of a 20 mM solution.How many milliliters of the 400 mM stock solution are needed?

Which statement describes one way in which osmosis and dialysis are different?

A technician adds 0.025 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?

Matter, Energy, and Measurement

Atomic Structure and Radioisotopes

Ionic and Covalent Compounds

Molecular Geometry, Polarity, and Intermolecular

Chemical Quantities and Introduction to Reactions

Chemical Reactions: Energy, Rates, and Equilibrium

Changes of State and Gas Laws

Acids and Bases, Ph, and Buffers

Introduction to Organic Chemistry:

Alcohols, Phenols, Thiols, Ethers, and Amines

The Carbonyl Containing Functional Groups

The Common Organic Reactions in Biochemistry

Carbohydrates: Structure and Function

Lipids: Structure and Function

Proteins: Structure and Function

Nucleotides and Nucleic Acids

Energy and Metabolism

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Which describes the dissolution of MgCl₂ in water?

In the following diagram, A is and B is .