题干

物质的量浓度相同的下列溶液中:①NH4Cl ②(NH4)2CO3 ③(NH4)2SO4 ④NH4HSO4 c(NH4+)由大到小的顺序是(   )

A:②③①④

B:④①③②

C:③②①④

D:③②④①

上一题 下一题 0.0难度 选择题 更新时间:2016-10-31 05:14:24

答案(点此获取答案解析)

D

同类题3

— Did he realize the serious situation immediately?
— No. It was quite a long time ________ he really realized it.