Question

硫酸钾的溶解度t1摄氏度时为Mg,t2摄氏度时为ng（M大于n),现有Wg t1摄氏度时饱和溶液从t1摄氏度降温至t2摄

Answer 1

硝酸钾的溶解度t1℃时为Mg,Wgt1℃时和饱和溶液硝酸钾质量wm/(100+m)g

水w-wm/(100+m)g

t2℃时母液中KNO3 wn/100-wmn/100(100+m)g=wn/(100+m)g

或

硝酸钾的溶解度t1℃时为Mg,Wgt1℃时和饱和溶液中水质量100w/(100+m)g

t2℃时母液中KNO3 wn/(100+m)g