12g of a saturated solution of potassium chloride at 20 Celsius, when evaporated to dryness, leaves a solid residue of 3g. Calculate the solubility of potassium chloride at 20 degrees Celsius.

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12g of a saturated solution of potassium chloride at 20 Celsius, when evaporated to dryness, leaves a solid residue of 3g. Calculate the solubility of potassium chloride at 20 degrees Celsius.

THOMAS RANGLONG 5th Dec, 2020

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Answer (1)

Divyanshi Lal 5th Dec, 2020

Hello student,

I hope you are doing well.

Weight of Water in solution = 12g - 3g = 9g

9g of H2O dissolves 3g of solid

=> 100g of Water will dissolve

(3/9)X100 = 33.3g

=> Solubility of Potassium Chloride(KCl) at 20 degrees Celsius in H2O = 33.3g.

I hope you find it useful.

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