Question 1

Dialysis is a process that involves the selective passage of water,protein molecules,and ions across a semipermeable membrane.

Accepted Answer

A) True 
 B)False

Question 2

What is the concentration of a solution formed by diluting 25.0 mL of a 3.2 M NaCl solution to 135.0 mL?

Accepted Answer

A) 17 M NaCl 
B) 0.59 M NaCl 
C) 0.50 M NaCl 
D) 2.7 M NaCl 
A) 17 M NaCl 
B) 0.59 M NaCl 
C) 0.50 M NaCl 
D) 2.7 M NaCl

Question 3

An aqueous solution with the label 0.25 M sucrose contains 0.25 grams of sucrose in every 1 L of solution.

Accepted Answer

A) True 
 B)False

Question 4

Which solution has the highest freezing point?

Accepted Answer

A) A solution formed by dissolving 0.75 mol of KCl in 1.00 kg of water. 
B) A solution formed by dissolving 0.25 mol of KCl in 1.00 kg of water. 
C) A solution formed by dissolving 0.75 mol of KCl in 4.00 kg of water. 
D) A solution formed by dissolving 0.25 mol of KCl in 0.50 kg of water. 
E) All of the solutions described have the same freezing point. 
A) A solution formed by dissolving 0.75 mol of KCl in 1.00 kg of water. 
B) A solution formed by dissolving 0.25 mol of KCl in 1.00 kg of water. 
C) A solution formed by dissolving 0.75 mol of KCl in 4.00 kg of water. 
D) A solution formed by dissolving 0.25 mol of KCl in 0.50 kg of water. 
E) All of the solutions described have the same freezing point.

Question 5

A saline solution used in intravenous drips for patients who cannot take oral fluids contains 0.92% (w/v)NaCl in water. How many grams of NaCl are contained in 575 mL of this solution?

Accepted Answer

A) 53 g NaCl 
B) 529 g NaCl 
C) 5.3 g NaCl 
D) 0.016 g NaCl 
E) 1.6 g NaCl 
A) 53 g NaCl 
B) 529 g NaCl 
C) 5.3 g NaCl 
D) 0.016 g NaCl 
E) 1.6 g NaCl

Question 6

What is the maximum volume of a 0.788 M CaCl2 solution that can be prepared using 85.3 g CaCl2?

Accepted Answer

A) 1.00 L 
B) 0.769 L 
C) 0.975 L 
D) 67.2 L 
A) 1.00 L 
B) 0.769 L 
C) 0.975 L 
D) 67.2 L

Question 7

What interactions are responsible for holding dissolved Cl- ions in an aqueous solution?

Accepted Answer

A) Ion-ion attractions between K+ and Cl- ions 
B) Ion-dipole attractions between Cl- ions and the hydrogen atoms of water 
C) Ion-dipole attractions between Cl- ions and the oxygen atom of water 
D) Hydrogen bonding between the Cl- ions and water 
A) Ion-ion attractions between K+ and Cl- ions 
B) Ion-dipole attractions between Cl- ions and the hydrogen atoms of water 
C) Ion-dipole attractions between Cl- ions and the oxygen atom of water 
D) Hydrogen bonding between the Cl- ions and water

Question 8

Which compound will be the least soluble in water?

Accepted Answer

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

Question 9

For most ionic and molecular solids,solubility generally increases as temperature increases.

Accepted Answer

A) True 
 B)False

Question 10

Which substance is a colloid?

Accepted Answer

A) Mayonnaise 
B) A dental filling 
C) Mint chocolate chip ice cream 
D) Gasoline 
A) Mayonnaise 
B) A dental filling 
C) Mint chocolate chip ice cream 
D) Gasoline

Question 11

The concentration unit of weight/volume percent concentration,(w/v)%,is the number of grams of solute dissolved in 100 mL of solution.

Accepted Answer

A) True 
 B)False

Question 12

Which solution has the lowest boiling point?

Accepted Answer

A) A solution formed by dissolving 0.75 mol of KCl in 1.00 kg of water. 
B) A solution formed by dissolving 0.75 mol of glucose (C6H12O6)in 1.00 kg of water. 
C) A solution formed by dissolving 0.75 mol of Ca(NO3)2 in 1.00 kg of water. 
D) A solution formed by dissolving 0.75 mol of Na3PO4 in 1.00 kg of water. 
E) All of the solutions described have the same boiling point. 
A) A solution formed by dissolving 0.75 mol of KCl in 1.00 kg of water. 
B) A solution formed by dissolving 0.75 mol of glucose (C6H12O6)in 1.00 kg of water. 
C) A solution formed by dissolving 0.75 mol of Ca(NO3)2 in 1.00 kg of water. 
D) A solution formed by dissolving 0.75 mol of Na3PO4 in 1.00 kg of water. 
E) All of the solutions described have the same boiling point.

Question 13

Liquid solutions are always transparent and colorless.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following pairs of compounds forms a solution?

Accepted Answer

A) NaBr and CCl4 
B) Methanol (CH3OH)and water 
C) Octane (C8H18)and water 
D) Nonanone (C9H18O)and water 
A) NaBr and CCl4 
B) Methanol (CH3OH)and water 
C) Octane (C8H18)and water 
D) Nonanone (C9H18O)and water

Question 15

Each day,the stomach produces 2.0 L of gastric juice that contains 0.10 M HCl. This corresponds to ________ grams of HCl each week.

Accepted Answer

The answer of Each day,the stomach produces 2.0 L of...

Question 16

Two solutions with the same osmotic pressure are said to be ________.

Accepted Answer

The answer of Two solutions with the same osmotic pressure...

Question 17

How many milliliters of a 5.25% (w/v)HCl solution must be used to prepare 250 mL of a 0.175% (w/v)HCl solution?

Accepted Answer

A) 8.3 mL HCl solution 
B) 7,500 mL HCl solution 
C) 230 mL HCl solution 
D) 240 mL HCl solution 
E) 8.6 mL HCl solution 
A) 8.3 mL HCl solution 
B) 7,500 mL HCl solution 
C) 230 mL HCl solution 
D) 240 mL HCl solution 
E) 8.6 mL HCl solution

Question 18

Colligative properties are properties of a solution that depend on the concentration of the solute particles but not their identity.

Accepted Answer

A) True 
 B)False

Question 19

Heptane (C7H16)is soluble in water.

Accepted Answer

A) True 
 B)False

Question 20

Pure water has an osmotic pressure of 1 atm.

Accepted Answer

A) True 
 B)False

Exam 8: Solutions

Dialysis is a process that involves the selective passage of water,protein molecules,and ions across a semipermeable membrane.

What is the concentration of a solution formed by diluting 25.0 mL of a 3.2 M NaCl solution to 135.0 mL?

An aqueous solution with the label 0.25 M sucrose contains 0.25 grams of sucrose in every 1 L of solution.

Which solution has the highest freezing point?

A saline solution used in intravenous drips for patients who cannot take oral fluids contains 0.92% (w/v)NaCl in water. How many grams of NaCl are contained in 575 mL of this solution?

What is the maximum volume of a 0.788 M CaCl2 solution that can be prepared using 85.3 g CaCl2?

What interactions are responsible for holding dissolved Cl- ions in an aqueous solution?

Which compound will be the least soluble in water?

For most ionic and molecular solids,solubility generally increases as temperature increases.

Which substance is a colloid?

The concentration unit of weight/volume percent concentration,(w/v)%,is the number of grams of solute dissolved in 100 mL of solution.

Which solution has the lowest boiling point?

Liquid solutions are always transparent and colorless.

Which of the following pairs of compounds forms a solution?

Each day,the stomach produces 2.0 L of gastric juice that contains 0.10 M HCl. This corresponds to ________ grams of HCl each week.

Two solutions with the same osmotic pressure are said to be ________.

How many milliliters of a 5.25% (w/v)HCl solution must be used to prepare 250 mL of a 0.175% (w/v)HCl solution?

Colligative properties are properties of a solution that depend on the concentration of the solute particles but not their identity.

Heptane (C7H16)is soluble in water.

Pure water has an osmotic pressure of 1 atm.

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

What is the maximum volume of a 0.788 M CaCl₂ solution that can be prepared using 85.3 g CaCl₂?

What interactions are responsible for holding dissolved Cl^- ions in an aqueous solution?

Heptane (C₇H₁₆)is soluble in water.