Chapter 9 Homework Problem 9.25 pravyious 2 me Problem 9.25 Part A ts A solution

Question

Chapter 9 Homework Problem 9.25 pravyious 2 me Problem 9.25 Part A ts A solution containing 92.5 g KCl in 230 g H2O at 50 °Cis cooled to 20°C Use the solubility data from the table below How many grams of KCl remain in solution at 20 C? Solubility (g/100 g H2O) ngs 20 C 50 C 34.0 426 88.0 1140 C12H22Ou (sugar)203.9 260 4 Substance KCI NaNO, Submit My Answers Give Up Incorrect; Try Again; 3 attempts remaining Part B How many grams of solid KCI came out of solution after cooling? Submit Manswers GiveUn 1:39 PM 11/13/2017

Explanation / Answer

part A

solubility of KCl at 20 c = 34 g/100 g H2O

amount of KCl remain in solution = 230*34/100 = 78.2 g

part B

amount of KCl came out of solution = 92.5 - 78.2 = 14.3 g

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