Home
Class 12
CHEMISTRY
The density at 20^(@)C of a 0.5 solution...

The density at `20^(@)C` of a 0.5 solution of acetic acid in water is `1.0042` g/m L. The molality of the solution

A

`0.50m`

B

`0.613m`

C

`0.513m`

D

`0.48m`

Text Solution

Verified by Experts

The correct Answer is:
C
Let , volume of solution `=1000m L` Moles of solute `=0.5`
`therefore` Weight of acetic acid `=0.5xx60g=30g`
Mass of solution = volume of solution x density
`therefore = 1000m L xx1.0042g//m L `
`therefore` Mass of solution `=1004.2g`
Mass of solvent `=1004 .2g-30g`
`therefore =974.2g`
Molality `=(1000xx"moles of solute")/("mass of solvent")=(1000xx0.5)/(974.2)`
`therefore` Molality `=0.513 m`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • PRACTICE SET 01

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise PAPER 1 (PHYSICS & CHEMISTRY)|50 Videos

  • PRACTICE SET 03

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise PAPER 1 (PYSICS & CHEMISTRY)|50 Videos

Similar Questions

Explore conceptually related problems

The density of 0.06 M solution of Kl in water is 1.006 g mL^(-1) . Determine the molality of this solution (K = 39, I = 127 "amu")

The density of a 2.03 M solution os acetic acid (molecular mass=60) in water is 1.790 g/mL. Calculate the molality of the solution.

Knowledge Check

  • Density of a 2.05 M solution of acetic acid in water is 1.02 g/mL. The molality of the solution is

    A
    `1.14 mol kg^(-1)`
    B
    `3.28 mol kg^(-1)`
    C
    `2.28 mol kg^(-1)`
    D
    `0.44 mol kg^(-1)`

  • Density of a 2.05 M solution of acetisc acid in water is 1.02 g/mL. The molality of solution will be :

    A
    1.14 m
    B
    3.28 m
    C
    2.28 m
    D
    0.44 m

  • Density of 2.05 M solution of acetic acid in water is 1.02g//mL . The molality of same solution is:

    A
    `1.14 mol kg^(-1)`
    B
    `3.28 mol kg^(-1)`
    C
    `2.28 mol kg^(-1)`
    D
    `0.44 mol kg^(-1)`

    • Similar Questions

    Explore conceptually related problems

    The density of a 2.05 molar solution of acetic acid in water is 1.82g/ml. The molality of the solution is

    The density of 2M solution of acetic acid (Mol. Wt. 60) is 1.02 g ml^(-1) . The molality of the solution 'X' is

    The density of of 3 M solution of sodium chloride is 1.252 g mL(-1) . The molality of the solution will be (molar mass, NaCl = 58.5 g mol(-1)L)

    Density of 3M NaCl solution is 1.28 g/cc. The molality of the solution is

    Density of 2M NaCI solution is 1.25 g/cc.The molality of the solution is :

    Home
    Profile