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Some Basic Concepts of Chemistry question

2005 · Q88
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Some Basic Concepts of Chemistry question

2005 · Q88

NEETChemistrySome Basic Concepts of ChemistryMCQ+4 / −1
The mole fraction of the solute in one molal aqueous solution is
  1. A
    0.009
  2. B
    0.018
  3. C
    0.027
  4. D
    0.036
View written solutionFree

Correct answer: B

One molal solution means one mole solute present in 1 kg (1000 g) solvent.

∴\therefore∴ mole of solute = 1

Mole of solvent (H2O) = 100018{{1000} \over {18}}181000​

Xsolute = 11+100018{1 \over {1 + {{1000} \over {18}}}}1+181000​1​ = 0.018

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