Question 1

Polar substances tend to dissolve in non-polar solvents.

Accepted Answer

A) True 
 B)False

Question 2

When will carbon dioxide in a carbonated soft drink dissolve best?

Accepted Answer

A)  after shaking the container 
B)  after heating the container 
C)  after cooling the container 
D)  after releasing the pressure 
A)  after shaking the container 
B)  after heating the container 
C)  after cooling the container 
D)  after releasing the pressure

Question 3

Which of the following would be considered a strong electrolyte?

Accepted Answer

A)  salt 
B)  sugar 
C)  acetic acid 
D)  all of the choices 
A)  salt 
B)  sugar 
C)  acetic acid 
D)  all of the choices

Question 4

When solid NaOH is dissolved in water,the solution becomes hot.The solution process is

Accepted Answer

A)  exothermic. 
B)  endothermic. 
C)  neither exothermic nor endothermic. 
D)  Can't be classified. 
A)  exothermic. 
B)  endothermic. 
C)  neither exothermic nor endothermic. 
D)  Can't be classified.

Question 5

When a patient's blood electrolyte levels are evaluated,sodium,chloride and bicarbonate ions are commonly measured and the difference in the total positive and negative charges calculated.This difference is called the

Accepted Answer

A)  ionic ratio. 
B)  isoelectric point. 
C)  electromotive constant. 
D)  anion gap. 
A)  ionic ratio. 
B)  isoelectric point. 
C)  electromotive constant. 
D)  anion gap.

Question 6

What volume of a 10.00% (w/v)solution of sugar is needed to provide 2.00 g of sugar?

Accepted Answer

A)  0.200 liter 
B)  1.00 mL 
C)  20.0 mL 
D)  5.00 mL 
A)  0.200 liter 
B)  1.00 mL 
C)  20.0 mL 
D)  5.00 mL

Question 7

What is the osmotic pressure of a 0.050 M solution of AlCl3 in water that is at 0.00S1U1P1$\circ$S1S1P0C? Consider AlCl3 to be a strong electrolyte.

Accepted Answer

A)  8.5 * 102 torr 
B)  1.1 atm 
C)  2.2 atm 
D)  3.4 * 103 torr 
A)  8.5 * 102 torr 
B)  1.1 atm 
C)  2.2 atm 
D)  3.4 * 103 torr

Question 8

You want to remove as much CO2 gas as possible from a water solution.Which of the following treatments would be most effective?

Accepted Answer

A)  cool the solution 
B)  filter the solution 
C)  boil the solution 
D)  aerate the solution 
A)  cool the solution 
B)  filter the solution 
C)  boil the solution 
D)  aerate the solution

Question 9

Light scattering is an effective way to distinguish between true solutions and colloidal dispersions.

Accepted Answer

A) True 
 B)False

Question 10

When preparing a 2.00 M solution of NaCl in water,a volumetric flask could be used to measure the volume of the solution.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following pairs correctly represent similar functions for a solution component and a colloid component?

Accepted Answer

A)  solvent/dispersed phase 
B)  solute/dispersion medium 
C)  solvent/dispersion medium 
D)  more than one response is correct 
A)  solvent/dispersed phase 
B)  solute/dispersion medium 
C)  solvent/dispersion medium 
D)  more than one response is correct

Question 12

Express the following concentration of solution in terms of molarity: 3.00 L of solution contains 1.75 mol of solute.

Accepted Answer

A)  5.25 M 
B)  0.583 M 
C)  1.71 M 
D)  too little information to know 
A)  5.25 M 
B)  0.583 M 
C)  1.71 M 
D)  too little information to know

Question 13

Which of the following statements relating to a solution is not correct?

Accepted Answer

A)  A solution may contain more than one solute. 
B)  A solution may contain only one solute. 
C)  Water is always the solvent in a solution. 
D)  More than one correct response given. 
A)  A solution may contain more than one solute. 
B)  A solution may contain only one solute. 
C)  Water is always the solvent in a solution. 
D)  More than one correct response given.

Question 14

When sodium acetate dissolves in water,the following reaction occurs.  
This solution could be used

Accepted Answer

A)  in a hot pack. 
B)  in a cold pack. 
C)  either a hot pack or cold pack. 
D)  neither a hot pack or cold pack. 
A)  in a hot pack. 
B)  in a cold pack. 
C)  either a hot pack or cold pack. 
D)  neither a hot pack or cold pack.

Question 15

A 0.9% NaCl (w/w)solution in water is

Accepted Answer

A)  produced by mixing 0.9 moles of NaCl in a 100 moles of water. 
B)  produced and has the same final volume as a 0.9% solution in ethyl alcohol. 
C)  a solution that boils at or above 100S1U1P1$\circ$S1S1P0C. 
D)  All of these responses are correct. 
A)  produced by mixing 0.9 moles of NaCl in a 100 moles of water. 
B)  produced and has the same final volume as a 0.9% solution in ethyl alcohol. 
C)  a solution that boils at or above 100S1U1P1$\circ$S1S1P0C. 
D)  All of these responses are correct.

Question 16

Rock candy (large table sugar crystals)can be produced by allowing a hot,saturated solution of sugar in water to cool off.

Accepted Answer

A) True 
 B)False

Question 17

The vapor pressure of a pure solvent is

Accepted Answer

A)  higher than that of a solution. 
B)  impossible to determine. 
C)  the same as that of a solution. 
D)  lower than that of a solution. 
A)  higher than that of a solution. 
B)  impossible to determine. 
C)  the same as that of a solution. 
D)  lower than that of a solution.

Question 18

A solution is produced in which water is the solvent and there are four solutes.Which of the solutes can dissolve better if the solution is heated?

Accepted Answer

A)  oxygen 
B)  sodium bicarbonate 
C)  argon 
D)  more than one response is right 
A)  oxygen 
B)  sodium bicarbonate 
C)  argon 
D)  more than one response is right

Question 19

Emulsions are destroyed by adding salt.

Accepted Answer

A) True 
 B)False

Question 20

Iodine,I2,is very slightly soluble in water,a polar solvent,but quite soluble in toluene,a nonpolar solvent.What can be inferred about the nature of the I2 molecule?

Accepted Answer

A)  It is ionic. 
B)  It is polar. 
C)  It is nonpolar. 
D)  Nothing can be inferred. 
A)  It is ionic. 
B)  It is polar. 
C)  It is nonpolar. 
D)  Nothing can be inferred.

Exam 7: Solutions and Colloids

Polar substances tend to dissolve in non-polar solvents.

When will carbon dioxide in a carbonated soft drink dissolve best?

Which of the following would be considered a strong electrolyte?

When solid NaOH is dissolved in water,the solution becomes hot.The solution process is

When a patient's blood electrolyte levels are evaluated,sodium,chloride and bicarbonate ions are commonly measured and the difference in the total positive and negative charges calculated.This difference is called the

What volume of a 10.00% (w/v)solution of sugar is needed to provide 2.00 g of sugar?

What is the osmotic pressure of a 0.050 M solution of AlCl3 in water that is at 0.00 ∘\circ∘ C? Consider AlCl3 to be a strong electrolyte.

You want to remove as much CO2 gas as possible from a water solution.Which of the following treatments would be most effective?

Light scattering is an effective way to distinguish between true solutions and colloidal dispersions.

When preparing a 2.00 M solution of NaCl in water,a volumetric flask could be used to measure the volume of the solution.

Which of the following pairs correctly represent similar functions for a solution component and a colloid component?

Express the following concentration of solution in terms of molarity: 3.00 L of solution contains 1.75 mol of solute.

Which of the following statements relating to a solution is not correct?

When sodium acetate dissolves in water,the following reaction occurs. This solution could be used

A 0.9% NaCl (w/w)solution in water is

Rock candy (large table sugar crystals)can be produced by allowing a hot,saturated solution of sugar in water to cool off.

The vapor pressure of a pure solvent is

A solution is produced in which water is the solvent and there are four solutes.Which of the solutes can dissolve better if the solution is heated?

Emulsions are destroyed by adding salt.

Iodine,I2,is very slightly soluble in water,a polar solvent,but quite soluble in toluene,a nonpolar solvent.What can be inferred about the nature of the I2 molecule?

Matter, measurements, and Calculations

Atoms and Molecules

Electronic Structure and the Periodic Law

Forces Between Particles

Chemical Reactions

The States of Matter

Reaction Rates and Equilibrium

Acids,bases,and Salts

Radioactivity and Nuclear Processes

Organic Compounds: Alkanes

Unsaturated Hydrocarbons

Alcohols, phenols, and Ethers

Aldehydes and Ketones

Carboxylic Acids and Esters

Amines and Amides

Carbohydrates

Lipids

Proteins

Enzymes

Nucleic Acids and Protein Synthesis

Nutrition and Energy for Life

Carbohydrate Metabolism

Lipid and Amino Acid Metabolism

Body Fluids

Filters

What is the osmotic pressure of a 0.050 M solution of AlCl₃ in water that is at 0.00^$\circ$C? Consider AlCl₃ to be a strong electrolyte.

You want to remove as much CO₂ gas as possible from a water solution.Which of the following treatments would be most effective?

Iodine,I₂,is very slightly soluble in water,a polar solvent,but quite soluble in toluene,a nonpolar solvent.What can be inferred about the nature of the I₂ molecule?