用Na?C?O?标定KMnO?的浓度,满足试()


用Na?C?O?标定KMnO?的浓度,满足试()

A.n(KMnO?)=5n(Na?C?O?)

B.n(1/5KMnO?)=n(1/2Na?C?O?)

C.n(KMnO?)=2/5Na(Na?C?O?)

D.n(KMnO?)=5/2(Na?C?O?)

正确答案:BC


Tag:浓度 时间:2022-12-23 16:42:29