【单选题】Three buffers are made by combining a 1 M solution of acetic acid with a 1 M solution of sodium acetate in the ratios shown below. 1 M acetic acid 1 M sodium acetate Buffer 1: 10 mL 90 mL Buffer 2: 50...
A.
pH of buffer 1 < pH of buffer 2 < pH of buffer 3
B.
pH of buffer 1 = pH of buffer 2 = pH of buffer 3
C.
pH of buffer 1 > pH of buffer 2 > pH of buffer 3
D.
The problem cannot be solved without knowing the value of p K a .