Question 1

Which statement is FALSE?

Accepted Answer

A) Water-soluble ionic compounds are electrolytes. 
B) NaCl is an electrolyte. 
C) Nonelectrolytes do not dissociate when dissolved in water. 
D) Ionic compounds are typically insoluble in water. 
E) When KI dissolves in water,the solution conducts electricity. 
A) Water-soluble ionic compounds are electrolytes. 
B) NaCl is an electrolyte. 
C) Nonelectrolytes do not dissociate when dissolved in water. 
D) Ionic compounds are typically insoluble in water. 
E) When KI dissolves in water,the solution conducts electricity.

Question 2

The label on a jar of jam says it contains 13 g of sucrose per tablespoon (15 mL).What is the molarity of sucrose in the jam? [Molar mass: sucrose,342.3 g/mol]

Accepted Answer

A) 0.0025 M 
B) 0.57 M 
C) 0.867 M 
D) 2.5 M 
E) 297 M 
A) 0.0025 M 
B) 0.57 M 
C) 0.867 M 
D) 2.5 M 
E) 297 M

Question 3

An alloy,such as brass,is an example of a solution in the solid state.

Accepted Answer

A) True 
 B)False

Question 4

An aqueous solution containing a nonvolatile solute such as NaCl will have a freezing point above 0°C at 1 atm pressure.

Accepted Answer

A) True 
 B)False

Question 5

A chemist needs 0.725 moles of acetic acid for a particular reaction.What volume of a 1.50 M acetic acid solution is needed to provide this amount?

Accepted Answer

A) 967 mL 
B) 1.09 L 
C) 0.967 L 
D) 0.483 L 
E) 1.09 mL 
A) 967 mL 
B) 1.09 L 
C) 0.967 L 
D) 0.483 L 
E) 1.09 mL

Question 6

Which statement concerning solution concentration is TRUE?

Accepted Answer

A) A 1.0 ppm solution is more concentrated than a 1.0% (m/m)solution. 
B) The ppm unit of concentration is typically used for very high concentrated solutions. 
C) If a solution is 12% (m/m)it will also be 12% (m/V). 
D) If a bottle is labeled 0.10 M Ba(OH)2,the concentration of OH- ions in solution is 0.20 M. 
E) A solution that is 1 ppt is less concentrated than a solution that is 1 ppm. 
A) A 1.0 ppm solution is more concentrated than a 1.0% (m/m)solution. 
B) The ppm unit of concentration is typically used for very high concentrated solutions. 
C) If a solution is 12% (m/m)it will also be 12% (m/V). 
D) If a bottle is labeled 0.10 M Ba(OH)2,the concentration of OH- ions in solution is 0.20 M. 
E) A solution that is 1 ppt is less concentrated than a solution that is 1 ppm.

Question 7

What type of liquid displays the Tyndall effect?

Accepted Answer

A) homogeneous mixture 
B) heterogeneous mixture 
C) solution 
D) colloidal suspension 
E) pure substance 
A) homogeneous mixture 
B) heterogeneous mixture 
C) solution 
D) colloidal suspension 
E) pure substance

Question 8

Na3PO4 dissolves in water to produce an electrolytic solution.What is the osmolarity of a 2.0 × 10-3 M Na3PO4 solution?

Accepted Answer

A) 1.0 × 10−3 osmolar 
B) 2.0 × 10−3 osmolar 
C) 4.0 × 10−3 osmolar 
D) 5.0 × 10−3 osmolar 
E) 8.0 × 10−3 osmolar 
A) 1.0 × 10−3 osmolar 
B) 2.0 × 10−3 osmolar 
C) 4.0 × 10−3 osmolar 
D) 5.0 × 10−3 osmolar 
E) 8.0 × 10−3 osmolar

Question 9

What is the osmotic pressure of a 6.0 × 10-2 M NaCl solution at 20°C (293 K)? [R=0.0821 (L•atm)/(mol•K)]

Accepted Answer

A) 2.9 atm 
B) 1.4 atm 
C) 27 atm 
D) 0.20 atm 
E) 0.099 atm 
A) 2.9 atm 
B) 1.4 atm 
C) 27 atm 
D) 0.20 atm 
E) 0.099 atm

Question 10

What concentration term is defined as the number of moles of solute per kilogram of solvent in a solution?

Accepted Answer

A) normality 
B) osmolarity 
C) % (m/V) 
D) molarity 
E) molality 
A) normality 
B) osmolarity 
C) % (m/V) 
D) molarity 
E) molality

Question 11

What is the molarity of a solution that contains 4.50 mol of NaF dissolved in 750.0 mL of solution?

Accepted Answer

A) 166 M 
B) 0.167 M 
C) 0.006 M 
D) 6.00 M 
E) 3.38 M 
A) 166 M 
B) 0.167 M 
C) 0.006 M 
D) 6.00 M 
E) 3.38 M

Question 12

What is the molarity of a solution prepared by diluting 10.0 mL of 18.0 M HCl with enough water to make 500.0 mL of solution?

Accepted Answer

A) 0.360 M 
B) 1.80 M 
C) 9.25 M 
D) 1.11 M 
E) 2.27 M 
A) 0.360 M 
B) 1.80 M 
C) 9.25 M 
D) 1.11 M 
E) 2.27 M

Question 13

What is the molarity of a solution if 300.0 mL of it contains 16.8 g of KNO3? [Formula weight: KNO3,101.11 amu]

Accepted Answer

A) 5.53 × 10−4 M 
B) 0.056 M 
C) 0.166 M 
D) 0.554 M 
E) 5.66 M 
A) 5.53 × 10−4 M 
B) 0.056 M 
C) 0.166 M 
D) 0.554 M 
E) 5.66 M

Question 14

Calculate the mass in grams of NaCl that is present in 500.0 mL of a 0.900% (m/V)solution.

Accepted Answer

A) 50.0 g 
B) 0.500 g 
C) 5.00 g 
D) 45.0 g 
E) 4.50 g 
A) 50.0 g 
B) 0.500 g 
C) 5.00 g 
D) 45.0 g 
E) 4.50 g

Question 15

Which of the following is NOT a colligative property of a solution?

Accepted Answer

A) vapor pressure lowering 
B) conductivity 
C) boiling point elevation 
D) freezing point depression 
E) osmotic pressure 
A) vapor pressure lowering 
B) conductivity 
C) boiling point elevation 
D) freezing point depression 
E) osmotic pressure

Question 16

Increasing the pressure of a gas over a solution increases the solubility of the gas in the solution.This is an example corresponding to which law?

Accepted Answer

A) Dalton's Law 
B) Henry's Law 
C) Tyndall's Law 
D) Raoult's Law 
E) Boyle's Law 
A) Dalton's Law 
B) Henry's Law 
C) Tyndall's Law 
D) Raoult's Law 
E) Boyle's Law

Question 17

Ringer's solution is used in the treatment of burns and wounds.It is prepared by dissolving 8.6 g of NaCl,0.30 g of KCl,and 0.33 g of CaCl2 in water,and diluting to a volume of 1.0 L.Which of the following is an accurate description of Ringer's solution?

Accepted Answer

A) NaCl is the solvent in this solution. 
B) NaCl,KCl,and CaCl2 are all solvents in this solution. 
C) Ringer's solution is a solid solution. 
D) Ringer's solution is a heterogeneous mixture. 
E) Ringer's solution is an aqueous solution. 
A) NaCl is the solvent in this solution. 
B) NaCl,KCl,and CaCl2 are all solvents in this solution. 
C) Ringer's solution is a solid solution. 
D) Ringer's solution is a heterogeneous mixture. 
E) Ringer's solution is an aqueous solution.

Question 18

Which statement concerning solutions is FALSE?

Accepted Answer

A) Colloidal suspensions are solutions. 
B) Solutions consist of solutes and solvents. 
C) Solutions can have the solid,liquid,or gas state. 
D) Solutions are homogeneous mixtures. 
E) Solutes can be ionic or covalent. 
A) Colloidal suspensions are solutions. 
B) Solutions consist of solutes and solvents. 
C) Solutions can have the solid,liquid,or gas state. 
D) Solutions are homogeneous mixtures. 
E) Solutes can be ionic or covalent.

Question 19

How are 0.15 M NaCl,0.30 M glucose,and intracellular fluids similar?

Accepted Answer

A) They are all saturated. 
B) They are all hypotonic. 
C) They are all hypertonic. 
D) They are all isotonic. 
E) They are all supersaturated. 
A) They are all saturated. 
B) They are all hypotonic. 
C) They are all hypertonic. 
D) They are all isotonic. 
E) They are all supersaturated.

Question 20

One mole of sodium chloride is added to 100 mL of water in beaker A.One mole of glucose,C6H12O6, is added to 100 mL of water in beaker B.How much more will the freezing point of water be lowered in beaker A than in beaker B?

Accepted Answer

A) two thirds as much 
B) twice as much 
C) three times as much 
D) Beakers A and B will experience the same degree of freezing point depression. 
E) It is impossible to determine. 
A) two thirds as much 
B) twice as much 
C) three times as much 
D) Beakers A and B will experience the same degree of freezing point depression. 
E) It is impossible to determine.

Exam 6: Solutions

Which statement is FALSE?

The label on a jar of jam says it contains 13 g of sucrose per tablespoon (15 mL).What is the molarity of sucrose in the jam? [Molar mass: sucrose,342.3 g/mol]

An alloy,such as brass,is an example of a solution in the solid state.

An aqueous solution containing a nonvolatile solute such as NaCl will have a freezing point above 0°C at 1 atm pressure.

A chemist needs 0.725 moles of acetic acid for a particular reaction.What volume of a 1.50 M acetic acid solution is needed to provide this amount?

Which statement concerning solution concentration is TRUE?

What type of liquid displays the Tyndall effect?

Na3PO4 dissolves in water to produce an electrolytic solution.What is the osmolarity of a 2.0 × 10-3 M Na3PO4 solution?

What is the osmotic pressure of a 6.0 × 10-2 M NaCl solution at 20°C (293 K)? [R=0.0821 (L•atm)/(mol•K)]

What concentration term is defined as the number of moles of solute per kilogram of solvent in a solution?

What is the molarity of a solution that contains 4.50 mol of NaF dissolved in 750.0 mL of solution?

What is the molarity of a solution prepared by diluting 10.0 mL of 18.0 M HCl with enough water to make 500.0 mL of solution?

What is the molarity of a solution if 300.0 mL of it contains 16.8 g of KNO3? [Formula weight: KNO3,101.11 amu]

Calculate the mass in grams of NaCl that is present in 500.0 mL of a 0.900% (m/V)solution.

Which of the following is NOT a colligative property of a solution?

Increasing the pressure of a gas over a solution increases the solubility of the gas in the solution.This is an example corresponding to which law?

Ringer's solution is used in the treatment of burns and wounds.It is prepared by dissolving 8.6 g of NaCl,0.30 g of KCl,and 0.33 g of CaCl2 in water,and diluting to a volume of 1.0 L.Which of the following is an accurate description of Ringer's solution?

Which statement concerning solutions is FALSE?

How are 0.15 M NaCl,0.30 M glucose,and intracellular fluids similar?

One mole of sodium chloride is added to 100 mL of water in beaker A.One mole of glucose,C6H12O6, is added to 100 mL of water in beaker B.How much more will the freezing point of water be lowered in beaker A than in beaker B?

Chemistry - Methods and Measurement

The Structure of the Atom and the Periodic Table

Structure and Properties of Ionic and Covalent Compounds

Calculations, chemical Changes, and the Chemical Equation

States of Matter: Gases, liquids, and Solids

Energy,rate and Equilibrium

Acids and Bases

The Nucleus, radioactivity, and Nuclear Medicine

An Introduction to Organic Chemistry

The Unsaturated Hydrocarbons: Alkenes, alkynes, and Aromatics

Alcohols, phenols, thiols, and Ethers

Aldehydes and Ketones

Carboxylic Acids and Carboxylic Acid Derivatives

Amines and Amides

Carbohydrates

Lipids and Their Functions in Biochemical Systems

Protein Structure and Function

Enzymes

Introduction to Molecular Genetics

Carbohydrate Metabolism

Aerobic Respiration and Energy Production

Fatty Acid Metabolism

Filters

Na₃PO₄ dissolves in water to produce an electrolytic solution.What is the osmolarity of a 2.0 × 10^-3 M Na₃PO₄ solution?

What is the osmotic pressure of a 6.0 × 10^-2 M NaCl solution at 20°C (293 K)? [R=0.0821 (L•atm)/(mol•K)]

What is the molarity of a solution if 300.0 mL of it contains 16.8 g of KNO₃? [Formula weight: KNO₃,101.11 amu]

Ringer's solution is used in the treatment of burns and wounds.It is prepared by dissolving 8.6 g of NaCl,0.30 g of KCl,and 0.33 g of CaCl₂ in water,and diluting to a volume of 1.0 L.Which of the following is an accurate description of Ringer's solution?

One mole of sodium chloride is added to 100 mL of water in beaker A.One mole of glucose,C₆H₁₂O_6, is added to 100 mL of water in beaker B.How much more will the freezing point of water be lowered in beaker A than in beaker B?