Multiple Choice
The concentration of H3O+ in a solution is 5 × 10-4 M at 25°C.What is its hydroxide-ion concentration? (Kw = 1.01 × 10-14)
A) 5 × 10-4 M
B) 2 × 10-10 M
C) 3 × 10-10 M
D) 4 × 10-10 M
E) 2 × 10-11 M
Correct Answer:

Verified
Correct Answer:
Verified
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