A.1.7 | B.2.0 | C.12.0 | D.12.4 |
A.11 | B.3 | C.11或1 | D.11或3 |
A.大于7 | B.等于7 | C.小于7 | D.无法判断 |
A.c(CH3COO-)=c(Na+)时.该溶液一定呈中性 |
B.c(CH3COO-)=c(Na+)时,醋酸与氢氧化钠恰好完全中和 |
C.c(CH3COO-)>c(Na+)>c(H+)>c(OH-)时,不一定是醋酸过量 |
D.c(Na+)>c(CH3COO-)>c(OH-)>c(H+)时,一定是氢氧化钠过量 |
A.V1>V2>V3 | B.V1<V2<V3 | C.V1=V2>V3 | D.V1=V2<V3 |
A.11:1 | B.9:1 | C.1:11 | D.1:9 |
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