Chemistry, asked by abhishekdas8205, 7 months ago

The solubility of KCL at 25°C is 30 g. What weight of KCL will be left when 20 of its saturated solution at 25°C is evaporated to dryness.

Answers

Answered by LEGEND778
4

Answer:

The solubility of KCl = 30 gram

The mass of evaporated solution = 20 gm

To Find:

The weight of KCl left behind after evaporation.

Calculation:

- The solubility of KCl is 30 grams.

⇒ The mass of KCl in 100 gm of the saturated solution = 30 gm

⇒ The mass of KCl in 20 gm of the saturated solution = (30/100) × 20 gm

⇒ The mass of KCl in 20 gm of the saturated solution = 6 gm

- SInce KCl cannot evaporate, after complete dryness is reached, this mass remains left over.

- So, the weight of KCl left behind after evaporation is 6 gm.

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Explanation:

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