In order to determine solubility of sodium iodide (NaI), 150g of saturated solution of sodium iodide(NaI) is evaporated to dryness at 250C. At this stage 90 g of NaI is obtained. Find the solubility of NaI in water at 25∘C.
Weight of saturated solution = 150 g
Weight of NaI = 90 g
Weight of water = (Weight of saturated solution) - (Weight of NaI)
= 150 - 90 = 60 g
Solubility of NaI = Weight of NalWeight of Water×100
⇒ 9060×100 ⇒ 150g