In an aqueous solution. the [OH-] is 2.0 × 10-3 M. What is the [H3O+] of this solution?
A) 5.0 × 10-12 M
B) 2.0 × 1011 M
C) 2.0 × 10-3 M
D) 5.0 × 1012 M
Correct Answer:
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