(B) The molar mass of water $(H_2O)$ is $18 \ g/mol$.Number of moles of water = $\frac{1000 \ g}{18 \ g/mol} \approx 55.55 \ mol$.Number of moles of u

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(B) The molar mass of water $(H_2O)$ is $18 \ g/mol$.Number of moles of water = $\frac{1000 \ g}{18 \ g/mol} \approx 55.55 \ mol$.Number of moles of urea = $1 \ mol$.Total number of moles = $55.55 + 1 = 56.55 \ mol$.Mole fraction of water $(x_{water})$ = $\frac{\text{moles of water}}{\text{total moles}} = \frac{55.55}{56.55} \approx 0.982$.

Class 12 Chemistry Solutions Method of expressing concentration of solution

Easy

What are the mole fraction of water and the total number of moles in a solution formed by dissolving $1$ mole of urea in $1000 \ g$ of pure water,respectively?

A
$0.0177, 56.55$
B
$0.982, 56.55$
C
$0.999, 56.55$
D
$1.21, 53.2$

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Method of expressing concentration of solution

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DifficultGUJCET 2025

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The density of $3 \text{ M}$ solution of sodium chloride is $1.252 \text{ g mL}^{-1}$. The molality of the solution will be ............. $\text{m}$. (molar mass,$NaCl = 58.5 \text{ g mol}^{-1}$)

DifficultJEE MAIN 2013

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What is the mole fraction of water in $10\%$ by weight $(w/w)$ of aqueous urea solution? [Given: Molar mass of $H, O, C$ and $N$ are $1, 16, 12$ and $14 \text{ g mol}^{-1}$ respectively.]

DifficultJEE MAIN 2026

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What are the mole fraction of water and the total number of moles in a solution formed by dissolving $1$ mole of urea in $1000 \ g$ of pure water,respectively?

Similar Questions

The molarity of a solution containing $15 \text{ g}$ of $\text{NaOH}$ in $900 \text{ ml}$ of solution will be . . . . . . . (in $\text{ M}$)

The volume of ethyl alcohol (density $1.15 \text{ g/cc}$) that has to be added to prepare $100 \text{ cc}$ of $0.5 \text{ M}$ ethyl alcohol solution in water is: (in $\text{ cc}$)

What will be the mass percentage of an aqueous solution of $NaOH$ in which the mole fraction of $NaOH$ is $0.2$ (in $\% W/W$)?

The density of $3 \text{ M}$ solution of sodium chloride is $1.252 \text{ g mL}^{-1}$. The molality of the solution will be ............. $\text{m}$. (molar mass,$NaCl = 58.5 \text{ g mol}^{-1}$)

What is the mole fraction of water in $10\%$ by weight $(w/w)$ of aqueous urea solution? [Given: Molar mass of $H, O, C$ and $N$ are $1, 16, 12$ and $14 \text{ g mol}^{-1}$ respectively.]

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