A KCl solution containing 39 g of KCl per 100.0 g of water is cooled from 70 âC to 0 âC. What happens during cooling? At 70 âC the solution is unsaturated, but by 0 âC the solution is saturated; therefore a precipitate will form. At 70 âC the solution is supersaturated, but by 0 âC the solution is unsaturated; therefore no precipitate will form. At 70 âC the solution is unsaturated, and at 0 âC the solution is also unsaturated; therefore no precipitate will form. At 70 âC the solution is supersaturated; therefore a precipitate will form upon cooling.

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A KCl solution containing 39 g of KCl per 100.0 g of water is cooled from 70 âC to 0 âC. What happens during cooling? At 70 âC the solution is unsaturated, but by 0 âC the solution is saturated; therefore a precipitate will form. At 70 âC the solution is supersaturated, but by 0 âC the solution is unsaturated; therefore no precipitate will form. At 70 âC the solution is unsaturated, and at 0 âC the solution is also unsaturated; therefore no precipitate will form. At 70 âC the solution is supersaturated; therefore a precipitate will form upon cooling.

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