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MHT CET2017ChemistrySome Basic Concepts of Chemistry

The molality of solution containing 15.20 g of urea, (molar mass = 60) dissolved in 150 g of water is

Options

  1. A1.689 m o l k g -1
  2. B0.1689 m o l k g -1
  3. C0.5922 m o l k g -1
  4. D0.2533 m o l k g -1

Correct answer

A. 1.689 m o l k g -1

Step-by-step solution

m = w 2 m 2 × 1000 w 1 = 15.20 60 × 1000 50 = 1.689 m o l k g - 1

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