The weight of an emptychina dish is 39 g andwhen a saturated solution of potassium nitrate is poured into it, its weight is 108g at 50^(@) C. After evaporating the solution to dryness, if theweight of the dish along with the crystals is 72g them thesolubility ofpotassium nitrate at 50^(@) C is _________ .

The weight of an emptychina dish is 39 g andwhen a saturated solution

1.	The weight of an emptychina dish is 39 g andwhen a saturated solution of potassium nitrate is poured into it, its weight is 108g at 50^(@) C. After evaporating the solution to dryness, if theweight of the dish along with the crystals is 72g them thesolubility ofpotassium nitrate at 50^(@) C is _________ .
Answer» `83.9` ` 95.6` ` 91.6` `87.4` Solution :The weight of SATURATED solution = 108 - 39 = 69 g The weight of `KNO_(3)` crystals = 72 - 39 = 33 g The weightof water in saturated solution = 69 - 33 = 36 g `:." Solubility of "KNO_(3) = ("Weight of" KNO_(3))/("Weight of water") xx 100 ` `= 33/36 xx 100 = 91.6" at " 50^(@)C`