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SAQ : At 30°C, 45 g of KNO3 dissolved in 100 g of water gives a saturated solution. What is the solubility of KNO3 in water at that temperature?

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Question 7

At 30°C, 45 g of KNO3 dissolved in 100 g of water gives a saturated solution. What is the solubility of KNO3 in water at that temperature? [Ans. 45]

Answer

Mass of solute = 45 g

Mass of solvent = 100 g

The solubility of KNO3 in water at 30°C can be calculated as follows:

Solubility = {45\over 100}×100  = 45

Therefore, the solubility of KNO3 in water at 30°C is 45.

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