已知Ka(HA)=5×10-4,0.02mol/LHA+0.01mol/LNaA混合溶液的pH值为()
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已知Ka(HA)=5×10-4,0.02mol/LHA+0.01mol/LNaA混合溶液的pH值为()
A.3
B.4
C.5
D.6
参考答案:
已知Ka(HA)=5×10-4,0.02mol/LHA+0.01mol/LNaA混合溶液的pH值为()
A.3
B.4
C.5
D.6
参考答案: