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NEET 2015
Exam
NEET
Year
2015
Subject
Chemistry
Chapter
Some Basic Concepts of Chemistry

NEET 2015 · Chemistry · Some Basic Concepts of Chemistry

What is mole fraction of the solute in a 1.00 m aqueous solution?

What is mole fraction of the solute in a 1.00 m aqueous solution?

Options

  1. A0.177
  2. B1.770
  3. C0.0354
  4. D0.0177

Correct answer

D. 0.0177

Step-by-step solution

1.0 m solution means 1 mole solute is present in 1000 g water.

nH2O=55.5molH2O{n}_{{H}_{2}O} = 55.5mol{H}_{2}O

XSolute=nSolutenSolute+nH2O=11+55.5=0.0177{X}_{Solute} = \dfrac{{n}_{Solute}}{{n}_{Solute} + {n}_{{H}_{2}O}} = \dfrac{1}{1 + 55.5} = 0.0177
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