Acid/Base Review

What is the pH of a solution that has a [H+] of 2.5 x 10-5?

• 4.60
• 5.0
• 2.5
• 7

What is the pOH of a solution where the [OH-] is 7.3 x 10-2 M?

• -1.14
• 2.0
• 1.14
• 7.3

What does a pH scale do?

• Tells you if a substance is an acid.
• Tells you if a substance is a base.
• Measures the strength or weakness of an acid or base.
• All of these are true.

A(n) ______ is a substance with a pH less than 7

• Acid
• Alkaline
• Base
• Buffer

If the pH of a solution is 5.6 the pOH is

• 6.5
• 12.4
• 8.4
• 5.6

If the [OH-] of a solution is 2.7 x 10^-4 mol/L the pOH of the solution is

• 10.44
• 3.56
• 1.00
• -4.43

A solution with a [H+] of 9.4 x 10^-5 mol/L is said to be

• Acidic
• Basic
• Neutral
• negative number, no solution.

If the [H+] of a solution is 6.8 x 10^-9 mol/L the pH is

• 8.17
• 8.2
• 9.99
• 8.62

if the [H+] of a solution is 8.4 x 10^-3 mol/L the pOH of the solution will be

• 2.08
• 11.92
• 1.02
• 12.98

Limes have a [H⁺] of 1.3 x 10^-2 mol/L. Their pOH is

• 1.89

• 12.11

• 1.03

• 12.97