What is the [ H₃ O+] in a solution that has a [OH-] = 5.0 × 10-2 M?
A)2.0 × 10-12 M
B)2.0 × 10-2 M
C)1.0 × 10-14 M
D)2.0 × 10-4 M
E)5.0 × 10-12 M

Name: What is the [ H₃ O+] in a solution that has a [OH-] = 5.0 × 10-2 M? A)2.0 × 10-12 M B)2.0 × 10-2 M C)1.0 × 10-14 M D)2.0 × 10-4 M E)5.0 × 10-12 M
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Question

Quizplus · Accepted Answer

Using the expression for the ion product constant of water, Kw = [H₃O+][OH-], we can solve for [H₃O+]:
Kw = [H₃O+][OH-]
1.0 x 10^-14 = [H₃O+][5.0 x 10^-2]
[H₃O+] = 2.0 x 10^-12 M

What Is the [ H₃ O+] in a Solution That