alleryStart learning →Acetic acid 0.1 M has Ka = 1.8 x 10^-5. Its hydronium ion concentration is about
A1.34 x 10^-3 M
B1.8 x 10^-5 M
C1.34 x 10^-2 M
D0.1 x 10^-1 M
Answer & Solution
Correct answer: A. 1.34 x 10^-3 M
Alpha = 1.34 x 10^-2, so [H3O+] = alpha x c = 1.34 x 10^-3 M.
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