The solubility of ammonium chloride in water at various temperatures is given below :
Temperature : 10∘C 20∘C 40∘C 60∘C 80∘C
Solubility : 24 g 37 g 41 g 55 g 66 g
What mass of ammonium chloride would be needed to make a saturated solution of ammonium chloride in fifty grams of water at 40∘C ?
According to question:
Solubility at 40oC = 41 g
But, solubility = solid dissolved in 100 grams of water in a solution
So, mass of ammonium chloride needed to make a saturated solution of ammonium chloride in 50 g of water at 40oC = 412 g = 20.5 g