Question 1

Which substance is a nonelectrolyte?

Accepted Answer

A) NaCl 
B) (NH4)2SO4 
C) H2O2 
D) KOH 
A) NaCl 
B) (NH4)2SO4 
C) H2O2 
D) KOH

Question 2

Which ionic compound is soluble in water?

Accepted Answer

A) PbBr2 
B) Fe(OH)3 
C) BaSO4 
D) Ca(NO3)2 
E) More than one of the ionic compounds is soluble in water. 
A) PbBr2 
B) Fe(OH)3 
C) BaSO4 
D) Ca(NO3)2 
E) More than one of the ionic compounds is soluble in water.

Question 3

Henry's law states that the solubility of a gas in a liquid is proportional to the ________.

Accepted Answer

A) partial pressure of the gas above the liquid 
B) temperature of the liquid 
C) temperature of the gas above the liquid 
D) molecular weight of the gas above the liquid 
A) partial pressure of the gas above the liquid 
B) temperature of the liquid 
C) temperature of the gas above the liquid 
D) molecular weight of the gas above the liquid

Question 4

Which mixture has the largest particle size?

Accepted Answer

A) Solution 
B) Suspension 
C) Colloid 
D) They all have the same particle size. 
A) Solution 
B) Suspension 
C) Colloid 
D) They all have the same particle size.

Question 5

Nonpolar compounds are soluble in nonpolar solvents and insoluble in polar solvents.

Accepted Answer

A) True 
 B)False

Question 6

A solution containing the maximum number of grams of solute that can dissolve in the solvent is said to be supersaturated.

Accepted Answer

A) True 
 B)False

Question 7

If cells are placed in an isotonic solution,________.

Accepted Answer

A) water diffuses out of the cells and the cells shrink in a process called hemolysis 
B) water diffuses out of the cells and the cells shrink in a process called crenation 
C) water diffuses into the cells and the cells swell and eventually burst in a process called hemolysis 
D) water diffuses into and out of the cell to an equal extent 
A) water diffuses out of the cells and the cells shrink in a process called hemolysis 
B) water diffuses out of the cells and the cells shrink in a process called crenation 
C) water diffuses into the cells and the cells swell and eventually burst in a process called hemolysis 
D) water diffuses into and out of the cell to an equal extent

Question 8

The solubility of gases increases with increasing temperature.

Accepted Answer

A) True 
 B)False

Question 9

A solution is made by mixing 569 mL of water and 238 mL ethanol. What is the concentration of ethanol in units of volume/volume percent?

Accepted Answer

A) 41.8% (v/v)ethanol 
B) 0.418% (v/v)ethanol 
C) 29.5% (v/v)ethanol 
D) 0.295% (v/v)ethanol 
E) 70.5% (v/v)ethanol 
A) 41.8% (v/v)ethanol 
B) 0.418% (v/v)ethanol 
C) 29.5% (v/v)ethanol 
D) 0.295% (v/v)ethanol 
E) 70.5% (v/v)ethanol

Question 10

A solution is made by dissolving 3.88 g of NaCl in enough water to make 67.8 mL of solution. What is the concentration of sodium chloride in units of weight/volume percent?

Accepted Answer

A) 5.41% (w/v)NaCl 
B) 94.3% (w/v)NaCl 
C) 5.72% (w/v)NaCl 
D) 0.0572% (w/v)NaCl 
A) 5.41% (w/v)NaCl 
B) 94.3% (w/v)NaCl 
C) 5.72% (w/v)NaCl 
D) 0.0572% (w/v)NaCl

Question 11

Which of the following statements concerning a solution is NOT true?

Accepted Answer

A) A solution is a heterogeneous mixture of two or more pure substances. 
B) A solution is composed of a solvent and one or more solutes; the solute(s)dissolve in the solvent. 
C) A solution has its components uniformly distributed. 
D) A solution is likely to form when the solute(s)and the solvent have similar polarities. 
A) A solution is a heterogeneous mixture of two or more pure substances. 
B) A solution is composed of a solvent and one or more solutes; the solute(s)dissolve in the solvent. 
C) A solution has its components uniformly distributed. 
D) A solution is likely to form when the solute(s)and the solvent have similar polarities.

Question 12

Dilution is the addition of solute to decrease the concentration of solvent.

Accepted Answer

A) True 
 B)False

Question 13

The process of solvent molecules surrounding solute particles is called ________.

Accepted Answer

The answer of The process of solvent molecules surrounding solute...

Question 14

Vitamin D is tested for its solubility in water and benzene (C6H6),and is found to be insoluble in water and soluble in benzene. These solubility results indicate that Vitamin D is most likely a nonpolar compound.

Accepted Answer

A) True 
 B)False

Question 15

Osmosis is the passage of water and small molecules across a semipermeable membrane from a solution of high solute concentration to a solution of lower solute concentration.

Accepted Answer

A) True 
 B)False

Question 16

A solution with water as the solvent is called a(n)________ solution.

Accepted Answer

The answer of A solution with water as the solvent...

Question 17

The greater the number of dissolved particles in a solution,the lower the solution's osmotic pressure.

Accepted Answer

A) True 
 B)False

Question 18

All nonvolatile solutes are ionic compounds that do not readily escape into the vapor phase,and thus they have a negligible vapor pressure at a given temperature.

Accepted Answer

A) True 
 B)False

Question 19

A hypotonic solution has ________ osmotic pressure than/as body fluids.

Accepted Answer

A) a higher 
B) a lower 
C) the same 
A) a higher 
B) a lower 
C) the same

Question 20

Which compound will be the most soluble in water?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Exam 8: Solutions

Which substance is a nonelectrolyte?

Which ionic compound is soluble in water?

Henry's law states that the solubility of a gas in a liquid is proportional to the ________.

Which mixture has the largest particle size?

Nonpolar compounds are soluble in nonpolar solvents and insoluble in polar solvents.

A solution containing the maximum number of grams of solute that can dissolve in the solvent is said to be supersaturated.

If cells are placed in an isotonic solution,________.

The solubility of gases increases with increasing temperature.

A solution is made by mixing 569 mL of water and 238 mL ethanol. What is the concentration of ethanol in units of volume/volume percent?

A solution is made by dissolving 3.88 g of NaCl in enough water to make 67.8 mL of solution. What is the concentration of sodium chloride in units of weight/volume percent?

Which of the following statements concerning a solution is NOT true?

Dilution is the addition of solute to decrease the concentration of solvent.

The process of solvent molecules surrounding solute particles is called ________.

Vitamin D is tested for its solubility in water and benzene (C6H6),and is found to be insoluble in water and soluble in benzene. These solubility results indicate that Vitamin D is most likely a nonpolar compound.

Osmosis is the passage of water and small molecules across a semipermeable membrane from a solution of high solute concentration to a solution of lower solute concentration.

A solution with water as the solvent is called a(n)________ solution.

The greater the number of dissolved particles in a solution,the lower the solution's osmotic pressure.

All nonvolatile solutes are ionic compounds that do not readily escape into the vapor phase,and thus they have a negligible vapor pressure at a given temperature.

A hypotonic solution has ________ osmotic pressure than/as body fluids.

Which compound will be the most soluble in water?

Matter and Measurement

Atoms and the Periodic Table

Ionic Compounds

Covalent Compounds

Chemical Reactions

Energy Changes,reaction Rates,and Equilibrium

Gases,liquids,and Solids

Acids and Bases

Nuclear Chemistry

Introduction to Organic Molecules and Functional Groups

Alkanes

Unsaturated Hydrocarbons

Organic Compounds That Contain Oxygen,halogen,or Sulfur

The Three-Dimensional Shape of Molecules

Aldehydes and Ketones

Carboxylic Acids,esters,and Amides

Amines and Neurotransmitters

Lipids

Carbohydrates

Amino Acids,proteins,and Enzymes

Nucleic Acids and Protein Synthesis

Metabolism and Energy Production

Carbohydrate,lipid,and Protein Metabolism

Filters

Vitamin D is tested for its solubility in water and benzene (C₆H₆),and is found to be insoluble in water and soluble in benzene. These solubility results indicate that Vitamin D is most likely a nonpolar compound.