A student , determined the solubility of four substabces ,potassium nitrate ,sodium , sodim choride
Channel: Doubtnut
Date: 2020-01-26

A student , determined the solubility of four substabces ,potassium nitrate ,sodium , sodim choride ,potassium choride and ammonium choride in a water at five different temperatures of `10^(@)C, 20^(@(C 40^(@)C,60^(@) C` and `80^(@)C` and obtained the following data : (a) what mass of potassium nitrate woulds be needed to make a satured solution of potassium nitrate in 50 grams of water at `40^(@)C`? (b) what would be observed if a saturated solution of potassium choride at `80^(@)C` is left to cool to the room temperature ? ( c) what is the solubilty of each salt at `20^(@)`C ? which salt has the highest solubility at this temperature ? (d) what is the effect of change of temperature on the solbubility of a salt as shown by the above date?