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Multiple Choice Quiz
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1

The term "alkali" refers to a(an)
A)acid
B)base
C)salt
D)hydronium ion
2

The hydronium ion formula is
A)H+.
B)OH-.
C)H3O+.
D)OH+.
3

A neutralization reaction is one in which
A)an acid neutralizes a base.
B)a base neutralizes an acid.
C)both a and b.
D)neither a nor b.
4

The difference between a strong and weak acid is that the strong acid ionizes __, whereas the weak acid ionizes __.
A)completely, not at all
B)completely, slightly
C)slightly, completely
D)slightly, not at all
5

Which of the following is a characteristic of acids?
A)They are proton acceptors.
B)They are slippery.
C)They have a sour taste.
D)They are ionic compounds.
6

Which of the following is a characteristic of bases?
A)They produce hydroxide ion in an aqueous solution.
B)They produce hydronium ion in an aqueous solution.
C)They are nonelectrolytes.
D)They do not affect indicators.
7

A 600mL solution contains 0.26 moles of a weak acid. The pH of the solution is 2.8. What is the percent of acid ionized in the solution?
A)1.5%
B)0.14%
C)0.37%
D)10%
8

Which of the following is a weak base?
A)H3PO4
B)CH3COOH
C)NaOH
D)NH3
9

What is the hydronium ion concentration in a 0.1M solution of NaOH?
A)1.0 x 10-14
B)0.10
C)1.0 x 10-7
D)1.0 x 10-13
10

The hydroxide ion concentration of a solution of a base is 0.001M. The pH of the solution is
A)3.
B)12.
C)8.
D)11.
11

A solution of a strong acid has a pH of 2. What is the hydronium ion concentration of the solution?
A)1 x 10-2M
B)1 x 10-12M
C)1 x 109M
D)2M
12

Which of the following solutions has the highest hydroxide ion concentration?
A)0.2M HCl
B)0.2M H2SO4
C)pure water
D)a solution with pOH 8
13

If we change the pH of a solution from 4.8 to 7.9, the hydronium ion concentration
A)decreases.
B)increases.
C)does not change.
D)becomes zero.
14

What is the hydroxide ion concentration of a solution of NaOH whose pH is 10.4?
A)3.4M
B)4.0 x 10-10M
C)1 x 10-4M
D)2.5 x 10-4M
15

Which of the following can act as either an acid or a base?
A)H-
B)NH4+
C)HCO3-
D)ClO3-
16

The conjugate acid of CH3COO- is
A)CH3COOH.
B)CH3COOH2+.
C)CH3COOH-.
D)none of the above.
17

A 0.1M solution of an electrolyte with a pH of 5 is
A)a weak base.
B)a weak acid.
C)a strong acid.
D)a strong base.
18

Which of the following has the weakest conjugate base?
A)HNO2
B)HClO2
C)HClO
D)HNO3
19

Calculate the number of grams of solute in 375L of a 1.00M HNO3 solution.
A)2.36 x 104g HNO3
B)375g HNO3
C)5.95g HNO3
D)3.75 x 104g HNO3
20

A solute concentration is 3.74ppm. What would this concentration be in units of mg of solute per kg of solution?
A)3.74mg solute/kg solution
B)3740mg solute/kg solution
C)0.00374mg solute/kg solution
D)1.87mg solute/kg solution





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