100ml0.3摩尔每升的硫酸钠含硫酸根0.03mol
50ml0.2摩尔每升的硫酸铝中含硫酸根0.05*0.2*3=0.03mol(Al2(SO4)3)
n=0.03+0.03=0.06mol
不考虑体积变化V(溶液)100+50=0.15升
c=0.06mol/0.15l=0.4mol/l
100ml0.3摩尔每升的硫酸钠含硫酸根0.03mol
50ml0.2摩尔每升的硫酸铝中含硫酸根0.05*0.2*3=0.03mol(Al2(SO4)3)
n=0.03+0.03=0.06mol
不考虑体积变化V(溶液)100+50=0.15升
c=0.06mol/0.15l=0.4mol/l