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KCET2022ChemistrySome Basic Concepts of Chemistry

An aqueous solution of alcohol contains 18 ~g of water and 414 ~g of ethyl alcohol. The mole fraction of water is

Options

  1. A0.4
  2. B0.7
  3. C0.9
  4. D0.1

Correct answer

D. 0.1

Step-by-step solution

Given, amount of ethylalcohol =414 ~g Amount of water =18 ~g Molar mass of water =18 Molar mass of ethyl alcohol =46 Mole of C ₂ H ₅ OH = 414 46 =9 Mole of H ₂ O = 18 18 =1 Mole fraction of H ₂ O = 1 10 =0.1

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