Introduction to General, Organic, and Biochemistry 10th Edition By by Katherine Denniston – Test Bank

Introduction to General, Organic, and Biochemistry 10th Edition By by Katherine Denniston – Test Bank

General, Organic, and Biochemistry, 10e (Denniston)
Chapter 6 Solutions

1) Which statement concerning solutions is FALSE?
A) A solution is a homogeneous mixture of two or more pure substances.
B) A solution is composed of a solvent and one or more solutes.
C) A solution has its components uniformly distributed throughout the mixture.
D) A solution is likely to form when the solute and the solvent have similar polarities.
E) A solution forms when the solvent and the solute react to form a new substance with one uniform phase.

Answer: E
Difficulty: 1 Easy
Topic: Solutions
Bloom’s: Remember
Section number: 06.01
Accessibility: Keyboard Navigation
Subtopic: The Solution Process; Properties of Solutions

2) A solution contains 1.65 g of NaF in a total volume of 150.0 mL. What is its concentration expressed as % (m/V)?
A) 0.011%
B) 1.10%
C) 11.0%
D) 110%
E) 1110%

Answer: B
Difficulty: 2 Medium
Topic: Solutions
Bloom’s: Apply
Section number: 06.02
Accessibility: Keyboard Navigation
Subtopic: Units of Concentration

3) Which statement concerning solution concentration is FALSE?
A) An unsaturated solution contains less than the maximum amount of solute that can be dissolved in the solvent.
B) A saturated solution contains more than 100 g of dissolved solute.
C) The concentration of a saturated solution is equal to the solubility of the solute.
D) A solution can be made less concentrated by adding additional solvent.
E) The molarity of a solution is the number of moles of solute present in one liter of the solution.

Answer: B
Difficulty: 1 Easy
Topic: Solutions
Bloom’s: Remember
Section number: 06.01
Accessibility: Keyboard Navigation
Subtopic: The Solution Process; Units of Concentration; Dilution; Solubility; Properties of Solutions

4) A solution contains the label 0.2 M KNO3. What is the correct interpretation of this concentration?
A) There are 0.2 moles of KNO3 in 100 mL of water.
B) There are 0.2 g of KNO3 in 100 mL of solution.
C) There are 0.2 molecules of KNO3 in 1 L of solution.
D) There are 0.2 g of KNO3 in 1 L of water.
E) There are 0.2 moles of KNO3 in 1 L of solution.

Answer: E
Difficulty: 1 Easy
Topic: Solutions
Bloom’s: Understand
Section number: 06.03
Accessibility: Keyboard Navigation
Subtopic: Units of Concentration

5) If 5.20 g of HCl is added to enough distilled water to form 3.00 L of solution, what is the molarity of the solution? [Molecular weight: HCl, 36.46 amu]
A) 0.0475 M
B) 0.143 M
C) 0.428 M
D) 1.73 M
E) 2.34 M

Answer: A
Difficulty: 2 Medium
Topic: Solutions
Bloom’s: Apply
Section number: 06.03
Accessibility: Keyboard Navigation
Subtopic: Units of Concentration

6) 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]
A) 5.53 × 10−4 M
B) 0.056 M
C) 0.166 M
D) 0.554 M
E) 5.66 M

Answer: D
Difficulty: 2 Medium
Topic: Solutions
Bloom’s: Apply
Section number: 06.03
Accessibility: Keyboard Navigation
Subtopic: Units of Concentration