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pKa of acetic acid is 4.76 and pKb of NH4OH is 4.75. The pH of ammonium acetate is about
A9.25
B7.01
C4.76
D6.50
Answer & Solution
Correct answer: B. 7.01
pH = 7 + (pKa - pKb)/2 = 7 + 0.005, which is about 7.01.
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