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