問題詳情

1. A buffer contains 0.01 mole of lactic acid (pKa = 3.86) and 0.05 mole of sodium lactate per
liter. What is the pH of the buffer?
(A)3.5
(B) 4.6
(C) 7.4
(D) 9.6
(E) 12.97

參考答案

答案：B

統計：A:0,B:0,C:1,D:0,E:0

難度：計算中