A.3.3 | B.7 | C.8 | D.12.7 |
A.0.01mol/L | B.0.017mol/L | C.0.05mol/L | D.0.50mol/L |
A.盐酸起始浓度为0.1mol•L-1 |
B.NaOH溶液浓度为0.08mol•L-1 |
C.滴入碱量为20mL时,向混合溶液中滴入2滴甲基橙试液,溶液显橙色 |
D.滴到中和点时,耗NaOH物质的量为0.002mol |
c1 |
c2 |
A.V(酸)=102V(碱) | B.V(碱)=102V(酸) | C.V(酸)=2V(碱) | D.V(碱)=2V(酸) |
A.在A、B间任意一点:c(K+)>c(CH3COO-)>c(OH-)>c(H+) |
B.在B点:c(K+)=c(CH3COO-)>c(OH-)=c(H+),且a=7.5 |
C.在C点:c(CH3COO-)>c(K+)>c(OH-)>c(H+) |
D.在D点:c(CH3COO-)+c(CH3COOH)>2c(K+) |
© 2017-2019 超级试练试题库,All Rights Reserved.