1、需要Na2SO4的质量=0.1L×1.0mol/L×142g/mol=14.2g
2、需要Na2SO4·10H2O的质量=0.1L×1.0mol/L×322g/mol=32.2g
3、需要5.0mol/l Na2SO4的体积=100mL×1.0mol/L÷5.0mol/L=20mL
1、需要Na2SO4的质量=0.1L×1.0mol/L×142g/mol=14.2g
2、需要Na2SO4·10H2O的质量=0.1L×1.0mol/L×322g/mol=32.2g
3、需要5.0mol/l Na2SO4的体积=100mL×1.0mol/L÷5.0mol/L=20mL