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

  • Option 1)

    0.177

  • Option 2)

    1.770

  • Option 3)

    0.0354

  • Option 4)

    0.0177

 

Answers (1)

best_answer

As learnt

Mole Fraction -

\dpi{100} Mole\: Fraction= \frac{Moles\: o\! f\: solute}{Moles\: o\! f solute+Moles\: o\! f solvent}

-

 Mole fraction = \frac{moles of salute}{moles \:of \:salute + moles\:of\:solvent}

Let's assume, we have 1 mole of solute

Then, wt. of solvent = 1 kg

Moles of solvent = \frac{1000}{18}\:mol

Mole fraction of solute = \frac{1}{1+\frac{1000}{18}}

                                     = \frac{18}{1018}

                                     = 0.0177


Option 1)

0.177

This option is incorrect

Option 2)

1.770

This option is incorrect

Option 3)

0.0354

This option is incorrect

Option 4)

0.0177

This option is correct

Posted by

prateek

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