Answer to Question #290569 in General Chemistry for Joseph Oti

Question

12g of water is saturated by 15g of potassium chloride at 20c calculate the solubility of potassium chloride at 20c [k=39,cl=35.5]

Answer 1

Weight of Water in solution = 12g - 3g = 9g

9g of H2O dissolves 3g of solid

=> 100g of Water will dissolve

(3/9)X100 = 33.3g

=> Solubility of Potassium Chloride(KCl) at 20 degrees Celsius in H2O = 33.3g.