A.①④ | B.①②④ | C.①②④⑤ | D.①②③④ |
c(H+)•c(CH3COO-) |
c(CH3COOH) |
c(CH3COOH)•c(OH-) |
c(CH3COO-) |
c(H+)•c(CH3COO-) |
c(CH3COOH) |
c(CH3COOH)•c(OH-) |
c(CH3COO-) |
A.I、Ⅱ分别表示盐酸和醋酸的滴定曲线 |
B.盐酸和醋酸的浓度均为0.1000mol•L-1 |
C.pH=7时,两种酸所消耗NaOH溶液的体积相等 |
D.V(NaOH)=20.00mL时,c(Cl-)=c(CH3COO-) |
A.常温下,0.01mol•L-1醋酸溶液pH=2 |
B.95℃纯水的pH<7,说明加热可导致水呈酸性 |
C.常温下,将pH=3的醋酸溶液稀释至10倍后溶液pH=4 |
D.常温下,将0.2mol•L-1的盐酸与等体积水混合后溶液pH=1 |
A.酸碱恰好中和 |
B.c1=c2 |
C.滴人酚酞溶液呈浅红色 |
D.所得溶液c(Na+)=c(CH3COO-) |
cH+ |
cOH- |
cH+ |
cHA |
cHA |
cA- |
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