设参与反应的硫酸xg,生成ZnSO4yg,生成氢气zg.
Zn+H2SO4=ZnSO4+H2(气体符号)
65 98 161 2
6.5 x y z
(1)65/98=6.5:X解得x=9.8g,溶质9.8g
50-9.8=40.2g 溶剂40.2g
(2)65/2=6.5/Z解得z=0.2g
50+6.5-0.2=56.3g答:所得溶液质量56.3g
(3)65/161=6.5/y解得y=16.1g
56.3-16.1=40.2g
答:溶液中溶质16.1g,溶剂40.2g
设参与反应的硫酸xg,生成ZnSO4yg,生成氢气zg.
Zn+H2SO4=ZnSO4+H2(气体符号)
65 98 161 2
6.5 x y z
(1)65/98=6.5:X解得x=9.8g,溶质9.8g
50-9.8=40.2g 溶剂40.2g
(2)65/2=6.5/Z解得z=0.2g
50+6.5-0.2=56.3g答:所得溶液质量56.3g
(3)65/161=6.5/y解得y=16.1g
56.3-16.1=40.2g
答:溶液中溶质16.1g,溶剂40.2g