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4 November, 02:57

The solubility of potassium chloride is 34.2 g/100 g h2o at 20°c. a 68.4-g sample of potassium chloride is added to 200.0 g of water at 20°c. is the solution saturated, unsaturated, or supersaturated?

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  1. 4 November, 03:17
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    We can say whether the solution is saturated, unsaturated or supersaturated by knowing the concentration of the solute in the solvent and comparing it to the value of solubility as a function of temperature. We do as follows:

    g KCl / g H2O = 68.4 g / 200 g = 0.342 g KCl / g H2O

    Therefore, the solution is saturated.

    Hope this answers the question.
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