Solution, Solute and Solvent Problem 7

Chemistry Level 1

At \(20^\circ\text{C}\), a \(200\text{ g}\) saturated \(\ce{NaCl}\) solution is heated until \(40\text{ g}\) of water is evaporated. Then, the solution is cooled down back to \(20^\circ\text{C}\). What is the mass of \(\ce{NaCl}\) that is separated out from the solvent in grams?

Details and Assumptions:

The solubility of \(\ce{NaCl}\) at \(20^\circ\text{C}\) is \(36\text{ g}/100\text{ g}\) water

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