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NEET 2011
Exam
NEET
Year
2011
Subject
Chemistry
Chapter
Some Basic Concepts of Chemistry

NEET 2011 · Chemistry · Some Basic Concepts of Chemistry

Mole fraction of the solute in a 1.00 molal aqueous solution is

Mole fraction of the solute in a 1.00 molal aqueous solution is

Options

  1. A0.0177
  2. B0.0344
  3. C1.7700
  4. D0.1770

Correct answer

A. 0.0177

Step-by-step solution

1.00 molal aqueous solution =1.0=1.0 mole in 100 g100 \mathrm{~g} water nsolute =1;Wsolvent =1000 gn_{\text{solute }}=1 ; W_{\text{solvent }}=1000 \mathrm{~g}.nsolvent =100018=55.56Xsolute =11+55.56=0.0177\begin{aligned}& n_{\text{solvent }}=\frac{1000}{18}=55.56 \\ & X_{\text{solute }}=\frac{1}{1+55.56}=0.0177 \end{aligned}
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