(1)60℃硝酸钾饱和溶液的溶质的质量分数=110g/(100g+110g)*100%=52.4%
20℃硝酸钾饱和溶液的溶质的质量分数=31.6g/(100g+31.6g)*100%=24%
(2)设可析出硝酸钾晶体的质量为X
210g:X=(100g+110g):(110g-31.6g)
X=78.4g
答:1)两种温度下溶液中溶质的质量分数各是52.4%、24%
(2)可析出78.4克晶体
(1)60℃硝酸钾饱和溶液的溶质的质量分数=110g/(100g+110g)*100%=52.4%
20℃硝酸钾饱和溶液的溶质的质量分数=31.6g/(100g+31.6g)*100%=24%
(2)设可析出硝酸钾晶体的质量为X
210g:X=(100g+110g):(110g-31.6g)
X=78.4g
答:1)两种温度下溶液中溶质的质量分数各是52.4%、24%
(2)可析出78.4克晶体