• 2022-06-11
    精密称取氯化钠0.1250g,用0.1011mol/L的硝酸银滴定至终点,消耗21.02ml[已知1ml硝酸银滴定液(0.1mol/L)相当于NaC15.844mg],则氯化钠的百分含量为()
    A: 99.95%
    B: 99.35%
    C: 100%
    D: 98.35%
    E: 99.99%