Question 1

Which of the following molecules can form hydrogen bonds?

Accepted Answer

A)  CH4 
B)  NaH 
C)  NH3 
D)  BH3 
E)  HI 
A)  CH4 
B)  NaH 
C)  NH3 
D)  BH3 
E)  HI

Question 2

For the question(s) that follow, consider a 4% starch solution and a 10% starch solution separated by a semipermeable membrane.
-A red blood cell will undergo crenation in

Accepted Answer

A)  water. 
B)  0.5% NaCl. 
C)  3% glucose. 
D)  5% glucose. 
E)  7% NaCl. 
A)  water. 
B)  0.5% NaCl. 
C)  3% glucose. 
D)  5% glucose. 
E)  7% NaCl.

Question 3

Compare the osmotic pressure of these solutions to the osmotic pressure of red blood cells.
-HI, a weak electrolyte

Accepted Answer

A) both 
B) ions 
C) molecules 
A) both 
B) ions 
C) molecules

Question 4

The mass/volume percent concentration refers to

Accepted Answer

A)  grams of solute in 1 L of solvent. 
B)  grams of solute in 1 L of solution. 
C)  grams of solute in 100 mL of solvent. 
D)  grams of solute in 100 mL of solution. 
E)  grams of solvent in 100 mL of solution. 
A)  grams of solute in 1 L of solvent. 
B)  grams of solute in 1 L of solution. 
C)  grams of solute in 100 mL of solvent. 
D)  grams of solute in 100 mL of solution. 
E)  grams of solvent in 100 mL of solution.

Question 5

The solubility of KI is 50 g in 100 g of H₂O at 20 °C. If 110 grams of KI are added to 200 grams of H₂O,

Accepted Answer

A)  all of the KI will dissolve. 
B)  the solution will freeze. 
C)  the solution will start boiling. 
D)  a saturated solution will form. 
E)  the solution will be unsaturated. 
A)  all of the KI will dissolve. 
B)  the solution will freeze. 
C)  the solution will start boiling. 
D)  a saturated solution will form. 
E)  the solution will be unsaturated.

Question 6

NaCl can be classified as a __________.

Accepted Answer

A)  gas 
B)  liquid 
C)  weak electrolyte 
D)  strong electrolyte 
E)  nonelectrolyte 
A)  gas 
B)  liquid 
C)  weak electrolyte 
D)  strong electrolyte 
E)  nonelectrolyte

Question 7

A substance that produces only a small number of ions in solution is known as a __________ electrolyte.

Accepted Answer

The answer of A substance that produces only a small...

Question 8

When some of the sugar added to iced tea remains undissolved at the bottom of the glass, the solution is

Accepted Answer

A)  dilute. 
B)  polar. 
C)  nonpolar. 
D)  saturated. 
E)  unsaturated. 
A)  dilute. 
B)  polar. 
C)  nonpolar. 
D)  saturated. 
E)  unsaturated.

Question 9

What volume (mL) of a 15% (m/v) NaOH solution contains 120 g NaOH?

Accepted Answer

A)  18 mL 
B)  0.13 mL 
C)  13 mL 
D)  120 mL 
E)  8.0 × 102 mL 
A)  18 mL 
B)  0.13 mL 
C)  13 mL 
D)  120 mL 
E)  8.0 × 102 mL

Question 10

How many equivalents are present in 5.0 moles of Al3+?

Accepted Answer

A)  15 Eq 
B)  1.3 Eq 
C)  5.0 Eq 
D)  0.67 Eq 
E)  3.0 Eq 
A)  15 Eq 
B)  1.3 Eq 
C)  5.0 Eq 
D)  0.67 Eq 
E)  3.0 Eq

Question 11

Identify the term defined in each description.
-the major attraction between water molecules

Accepted Answer

A) hypotonic 
B) unsaturated 
C) hydrogen bonding 
D) saturated 
E) hypertonic
F)hydration 
A) hypotonic 
B) unsaturated 
C) hydrogen bonding 
D) saturated 
E) hypertonic
F)hydration

Question 12

Compare the osmotic pressure of these solutions to the osmotic pressure of red blood cells.
-KNO₃, a strong electrolyte

Accepted Answer

A) both 
B) ions 
C) molecules 
A) both 
B) ions 
C) molecules

Question 13

Which one of the following compounds will NOT be soluble in water?

Accepted Answer

A)  NaOH 
B)  PbS 
C)  K2SO₄ 
D)  LiNO₃ 
E)  MgCl₂ 
A)  NaOH 
B)  PbS 
C)  K2SO₄ 
D)  LiNO₃ 
E)  MgCl₂

Question 14

Water is a polar solvent and hexane (C6H14) is a nonpolar solvent. Which of the following correctly describes the solubility of the solute?

Accepted Answer

A)  mineral oil, soluble in water 
B)  CaCl₂, soluble in hexane 
C)  NaHCO₃, soluble in water 
D)  CCl4 , soluble in water 
E)  octane, soluble in water 
A)  mineral oil, soluble in water 
B)  CaCl₂, soluble in hexane 
C)  NaHCO₃, soluble in water 
D)  CCl4 , soluble in water 
E)  octane, soluble in water

Question 15

If 100. mL of water is added to 25 mL of 5.0 M NaCl, the final concentration is __________.

Accepted Answer

A)  25 M 
B)  1.0 M 
C)  5.0 M 
D)  2.0 M 
E)  1.3 M 
A)  25 M 
B)  1.0 M 
C)  5.0 M 
D)  2.0 M 
E)  1.3 M

Question 16

In water, a substance that ionizes completely in solution is called a

Accepted Answer

A)  weak electrolyte. 
B)  nonelectrolyte. 
C)  semiconductor. 
D)  nonconductor. 
E)  strong electrolyte. 
A)  weak electrolyte. 
B)  nonelectrolyte. 
C)  semiconductor. 
D)  nonconductor. 
E)  strong electrolyte.

Question 17

For the question(s) that follow, consider a 4% starch solution and a 10% starch solution separated by a semipermeable membrane.
-A red blood cell will undergo hemolysis in

Accepted Answer

A)  water. 
B)  0.9% NaCl. 
C)  5% glucose. 
D)  5% NaCl. 
E)  10% glucose. 
A)  water. 
B)  0.9% NaCl. 
C)  5% glucose. 
D)  5% NaCl. 
E)  10% glucose.

Question 18

The molarity (M) of a solution refers to

Accepted Answer

A)  moles of solute/L of solution. 
B)  moles of solute/L of solvent. 
C)  moles of solute/100 mL of solution. 
D)  grams of solute/100 mL of solution. 
E)  grams of solute/L of solution. 
A)  moles of solute/L of solution. 
B)  moles of solute/L of solvent. 
C)  moles of solute/100 mL of solution. 
D)  grams of solute/100 mL of solution. 
E)  grams of solute/L of solution.

Question 19

How many grams of glucose are needed to prepare 400. mL of a 2.0%(m/v) glucose solution?

Accepted Answer

A)  800. g 
B)  0.0050 g 
C)  8.0 g 
D)  2.0 g 
E)  200. g 
A)  800. g 
B)  0.0050 g 
C)  8.0 g 
D)  2.0 g 
E)  200. g

Question 20

The mass percent concentration refers to

Accepted Answer

A)  grams of solute in 1 kg of solvent. 
B)  grams of solute in 1 kg of solution. 
C)  grams of solute in 100 g of solvent. 
D)  grams of solute in 100 g of solution. 
E)  grams of solvent in 100 g of solution. 
A)  grams of solute in 1 kg of solvent. 
B)  grams of solute in 1 kg of solution. 
C)  grams of solute in 100 g of solvent. 
D)  grams of solute in 100 g of solution. 
E)  grams of solvent in 100 g of solution.

Exam 8: Solutions

Which of the following molecules can form hydrogen bonds?

For the question(s) that follow, consider a 4% starch solution and a 10% starch solution separated by a semipermeable membrane. -A red blood cell will undergo crenation in

Compare the osmotic pressure of these solutions to the osmotic pressure of red blood cells. -HI, a weak electrolyte

The mass/volume percent concentration refers to

The solubility of KI is 50 g in 100 g of H₂O at 20 °C. If 110 grams of KI are added to 200 grams of H₂O,

NaCl can be classified as a __________.

A substance that produces only a small number of ions in solution is known as a __________ electrolyte.

When some of the sugar added to iced tea remains undissolved at the bottom of the glass, the solution is

What volume (mL) of a 15% (m/v) NaOH solution contains 120 g NaOH?

How many equivalents are present in 5.0 moles of Al3+?

Identify the term defined in each description. -the major attraction between water molecules

Compare the osmotic pressure of these solutions to the osmotic pressure of red blood cells. -KNO₃, a strong electrolyte

Which one of the following compounds will NOT be soluble in water?

Water is a polar solvent and hexane (C6H14) is a nonpolar solvent. Which of the following correctly describes the solubility of the solute?

If 100. mL of water is added to 25 mL of 5.0 M NaCl, the final concentration is __________.

In water, a substance that ionizes completely in solution is called a

For the question(s) that follow, consider a 4% starch solution and a 10% starch solution separated by a semipermeable membrane. -A red blood cell will undergo hemolysis in

The molarity (M) of a solution refers to

How many grams of glucose are needed to prepare 400. mL of a 2.0%(m/v) glucose solution?

The mass percent concentration refers to

Chemistry and Measurements

Energy and Matter

Atoms and Elements

Nuclear Chemistry

Compounds and Their Bonds

Chemical Reactions and Quantities

Gases

Reaction Rates and Chemical Equilibrium

Acids and Bases

Introduction to Organic Chemistry: Alkanes

Alkenes, Alkynes, and Aromatic Compounds

Alcohols, Phenols, Thiols, and Ethers

Aldehydes, Ketones, and Chiral Molecules

Carbohydrates

Carboxylic Acids and Esters

Lipids

Amines and Amides

Amino Acids and Proteins

Enzymes and Vitamins

Nucleic Acids and Protein Synthesis

Metabolic Pathways for Carbohydrates

Metabolism and Energy Production

Metabolic Pathways for Lipids and Amino Acids

Filters

How many equivalents are present in 5.0 moles of Al³⁺?

Water is a polar solvent and hexane (C₆H₁₄) is a nonpolar solvent. Which of the following correctly describes the solubility of the solute?