Home
Class 11
CHEMISTRY
What is mole fraction of methyl alochol ...

What is mole fraction of methyl alochol in a 5.2 molal aqueous solution of methyl alcohol, `CH_(3)OH`.

A

0.1

B

0.19

C

0.086

D

0.05

Text Solution

Verified by Experts

The correct Answer is:
C
5.2 molal methanol.
`:.` 5.2 mole of methanol in 1000 g water.
Mole of water `= (1000)/(18) = 55.56`
Total mole `= 5.2 + 55.56 = 60.76`
Mole fraction of methanol `=("mole of methanol")/("total mole")`
`= (5.2)/(60.76) = 0.08558 ~~0.086`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • SOME BASIC CONCEPTS OF CHEMISTRY

    KUMAR PRAKASHAN|Exercise Section - C (Multiple Choice Questions (MCQs)) ( MCQs asked in Board Exam)|30 Videos

  • SOME BASIC CONCEPTS OF CHEMISTRY

    KUMAR PRAKASHAN|Exercise Section - D (Solutions of NCERT Exemplar Problems) ( Multiple Choice Questions (MCQs))|15 Videos

  • SOME BASIC CONCEPTS OF CHEMISTRY

    KUMAR PRAKASHAN|Exercise Section - C (Multiple Choice Questions (MCQs)) (MCQs asked in Competitive Exam)|62 Videos

  • SAMPLE QUESTION PAPER FOR FIRST EXAM

    KUMAR PRAKASHAN|Exercise SECTION -D|2 Videos

  • STATES OF MATTER

    KUMAR PRAKASHAN|Exercise QUESTION PAPER FROM MODULE (SECTION - A)|4 Videos

Similar Questions

Explore conceptually related problems

Find out mole fraction of methanol in 5.2 m solution of methanol.

What is the molality m, of methanol in a solution prepared by dissolving 160 g of methanol, CH_(3)OH , in 200.0 g of water :

Knowledge Check

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

    A
    `0.0354`
    B
    `0.0177`
    C
    `0.177`
    D
    `1.770`

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

    A
    0.0354
    B
    0.0177
    C
    0.177
    D
    1.77

  • Give mole fraction of solute present in 1.00 m aqueous solution.

    A
    `0.177`
    B
    `0.00177`
    C
    `0.0177`
    D
    `0.034`

    • Similar Questions

    Explore conceptually related problems

    An aqueous solution of CH_(3)COONa is basie.

    A 5.2 molal aqueous of methyl alcohol, CH_(3)OH , is supplied. What is the molefraction of methyl alcohol in the solution ?

    Mole fraction of A in H_(2)O is 0.2 The molality of A in H_(2)O is :

    The relative lowering in vapour pressure and mole fraction of a solvent in 1 1.5 molal aqueous solution obeying Raoult's law for non volatile solute and volatile solvent.

    What is the molality of 2.05 molar aqueous solution of acetic acid ? The density of solution is 1.02 gram/mL.

    Home
    Profile