A china dish weighs 25 g when empty.When saturated solution of potassium chloride is poured into it at 40^(@)C , the weight of the dish is 63 g . When the solution is evaporated to dryness, the china dish along with crystals weighs 40 g. Find the solubility of potassium chloride at 40^(@)C .

A china dish weighs 25 g when empty.When saturated solution of potassi

1.	A china dish weighs 25 g when empty.When saturated solution of potassium chloride is poured into it at 40^(@)C , the weight of the dish is 63 g . When the solution is evaporated to dryness, the china dish along with crystals weighs 40 g. Find the solubility of potassium chloride at 40^(@)C .
Answer» Solution :Weight of SATURATED solution of KCl =63-25 =38g , Weight of crystal of KCl=40-25=15 g Weight of WATER contained in saturated solution =38-15=23 g `=("Weight of KCl crystals")/("Weight of water")xx100` `=(15)/(23)xx100=65.2` at `40^(@)C`