34.Calculate the [H+] in a solution that is 0.16 M in NaF and 0.25 M in HF. (Ka = 7.2 × 10–4 ) (HF: 20.01 g/mol)
(A)7.2×10–4 M
(B) 1.6 M
(C) 1.1×10–3 M
(D) 0.20 M

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統計: A(0), B(0), C(3), D(0), E(0) #3328508

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