Chemistry Worksheet - Multiple Choice (Page 2 of 3) in pdf

Chemistry Worksheet - Multiple Choice Page 2

5) One liter of a solution of pH 2 has how many more hydrogen ions (H + ) than 1 L of a solution of pH

A) 4,000 times more

B) 100,000 times more

C) 400 times more

D) 4 times more

E) 10,000 times more

6) The molecular weight of water is 18 daltons. What is the molarity of 1 liter of pure water?

A) 0.66M

B) 1.0M

C) 55.6M

D) 18M

E) 37M

7) One mole (mol) of a substance is

A) 6.02 × 10 23 molecules of the substance.

B) 1 g of the substance dissolved in 1 L of solution.

C) the largest amount of the substance that can be dissolved in 1 L of solution.

D) the molecular mass of the substance expressed in grams.

E) A and D only

8) You have a freshly-prepared 0.1M solution of glucose in water. Each liter of this solution contains

how many glucose molecules?

A) 3.01 × 10 23

B) 6.02 × 10 23

C) 6.02 × 10 24

D) 12.04 × 10 23

E) 6.02 × 10 22

The following question is based on Figure 3.1: solute molecule surrounded by a hydration shell of water.

Figure 3.1

9) Based on your knowledge of the polarity of water molecules, the solute molecule is most likely

A) positively charged.

B) hydrophobic.

C) without charge.

D) nonpolar.

E) negatively charged.

Chemistry Worksheet - Multiple Choice Page 2