The solunility of KNO 3 is 155g per 100g of watherat 75 degree C, and 38g at 25
ID: 75523 • Letter: T
Question
The solunility of KNO3 is 155g per 100g of watherat 75 degree C, and 38g at 25 C. The mass of KNO3 willcristallize out of solution if 100g of it saturated solution iscooled from 75C to 25C is? this is what i did: at 75C°: solubility= g of KNO3/ g ofsolution g of KNO3= 60.78g the same at 25C° so g of KNO3= 27.5g i thought that does grams were the ones soluted at thespecific temperatures so i sustracted 27.5g from 60.78g and got33.24g that i thought were the ones that cristallized, but de keyanswer of the book says the answer is 45.9g!!Explanation / Answer
155 - 38 = 117g will crystallize