What is the hydroxide ion concentration in an aqueous solution where the pH = 5?
A) The hydronium ion concentration equals 1 × 10-9.
B) The hydronium ion concentration equals 1 × 10-7.
C) The hydronium ion concentration equals 1 × 10-5.
D) The hydronium ion concentration equals 1 × 10-3.
Correct Answer:
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