HNO3(硝酸溶液的溶质)的摩尔质量是:63g/mol .
配1000ml浓度为3mol/L的硝酸溶液需原料浓硝酸质量是:
(3mol*63g/mol)/69%
=189g/0.69
=274g .
把上述质量的浓硝酸溶于纯水并稀释到1000ml,混合均匀即可.
(纯水用量约是1000g-274g=726g).
HNO3(硝酸溶液的溶质)的摩尔质量是:63g/mol .
配1000ml浓度为3mol/L的硝酸溶液需原料浓硝酸质量是:
(3mol*63g/mol)/69%
=189g/0.69
=274g .
把上述质量的浓硝酸溶于纯水并稀释到1000ml,混合均匀即可.
(纯水用量约是1000g-274g=726g).