24.Calculate the hydronium ion concentration of pure water at 25℃.
(A)1.0×10-6M
(B)1.0×10-4M
(C)1.0×10-7M
(D)1.0×10-14M
(E)1.0×10-8M

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統計： A(1), B(0), C(18), D(0), E(0) #2275870