Question

When 25 gm of saturated
solution of salt prepared at 40
degree celcius is heated to
dryness, 10 gm solid residue is
obtained. What is the solubility
of the salt at 40 degree
celcius?
• 33.33
• 66.67
• 40​

Answer 1

Explanation:

The solubility of a solute in a solvent at any temperature is defined as the maximum amount of the solute in grams which can dissolve in 100g of the solvent to form the saturated solution at that particular temperature.

Weight of solute (KCl) =13.2 g

Weight of solvent=50−13.2=36.8 g

∴ Solubility of KCl =

36.3

13.2

×100=35.869.

Option A is correct.