A solution containing 2 g of a non-volatile solute in 20 g of water boils at 373 . 52 K . The molecular mass of the solute is _____ gmol - 1 . (Nearest integer) Given, water boils at 373 K , K b for water = 0 . 52 K kg mol - 1

Question

A solution containing 2 g of a non-volatile solute in 20 g of water boils at 373 . 52 K . The molecular mass of the solute is _____ gmol - 1 . (Nearest integer) Given, water boils at 373 K , K b for water = 0 . 52 K kg mol - 1,

MARKS App · Accepted Answer

Elevation in boiling point: ⇒ ΔT b = 373 . 52 - 373 = 0 . 52 ΔT b = K b · m ⇒ 0 . 52 = 0 . 52 × 2 Molar Mass of Solute × 1 20 × 10 - 3 Molar Mass of solute = 100 g / mol

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