# Problem: A solution containing 84.9 g KCl in 210 g H2O at 50 °C is cooled to 20°C. Use the solubility data from the table below.Solubility (g/100gH2O)Substance20°C50°CKCl34.042.6NaNO388.0114.0C12H22O11 (sugar)203.9260.4How many grams of KCl remain in the solution at 20°C?How many grams of solid KCl came out of the solution after cooling?

###### FREE Expert Solution

For the first part, we're being asked to determine how many grams of KCl remain in the solution at 20°C.

We're given a solution containing 84.9 g KCl in 210 g H2O at 50 °C then cooled to 20°C

solubility of KCl at 20°C:    34.0 g KCl/100 g H2O

We're going to use ratio and proportion to calculate how much KCl is left:

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###### Problem Details

A solution containing 84.9 g KCl in 210 g H2O at 50 °C is cooled to 20°C. Use the solubility data from the table below.

 Solubility (g/100gH2O) Substance 20°C 50°C KCl 34.0 42.6 NaNO3 88.0 114.0 C12H22O11 (sugar) 203.9 260.4

How many grams of KCl remain in the solution at 20°C?

How many grams of solid KCl came out of the solution after cooling?