稀硫酸的浓度质量分数:
100g*95%/(100g+400g)
=95/500=19% .
稀硫酸的体积立方厘米数:
500g/(1.13g/cm³)=442cm³ ;
溶液中纯硫酸的摩尔数:
100g*95%/(98g/mol)=0.97mol ;
稀硫酸的物质量浓度:
(0.97mol/442cm³)*1000cm³/L
=2.2mol/L .
稀硫酸的浓度质量分数:
100g*95%/(100g+400g)
=95/500=19% .
稀硫酸的体积立方厘米数:
500g/(1.13g/cm³)=442cm³ ;
溶液中纯硫酸的摩尔数:
100g*95%/(98g/mol)=0.97mol ;
稀硫酸的物质量浓度:
(0.97mol/442cm³)*1000cm³/L
=2.2mol/L .