(B) The molar mass of glucose $(C_6H_{12}O_6)$ is $180 \ g/mol$. Given mass of solute $(w)$ = $18 \ g$. Mass of solvent $(W)$ = $250 \ g$. Molality $(

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(B) The molar mass of glucose $(C_6H_{12}O_6)$ is $180 \ g/mol$. Given mass of solute $(w)$ = $18 \ g$. Mass of solvent $(W)$ = $250 \ g$. Molality $(m)$ is calculated as: $m = \frac{w \times 1000}{M \times W} = \frac{18 \times 1000}{180 \times 250} = 0.4 \ m$.

Class 12 Chemistry Solutions Method of expressing concentration of solution

Easy

What is the molality of a solution which contains $18 \ g$ of glucose $(C_6H_{12}O_6)$ in $250 \ g$ of water?

A
$4.0$
B
$0.4$
C
$4.2$
D
$0.8$

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Method of expressing concentration of solution

What is meant by mass percentage $( \% w/w )$?

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How many grams of $KCl$ would have to be dissolved in $60 \ g$ of $H_2O$ to give a $20 \%$ by weight solution?

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$2 \ g$ of substance $A$ is added to $18 \ g$ of water to form a solution. Calculate the mass percentage of the solute. (in $\%$)

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Calculate the mole fraction of urea in an aqueous solution of $1 \ m$ urea $(NH_2CONH_2)$.

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What is the molality of a solution which contains $18 \ g$ of glucose $(C_6H_{12}O_6)$ in $250 \ g$ of water?

Similar Questions

What is meant by mass percentage $( \% w/w )$?

How many grams of $KCl$ would have to be dissolved in $60 \ g$ of $H_2O$ to give a $20 \%$ by weight solution?

Calculate the molarity of a solution prepared by dissolving $7.1 \ g$ of sodium sulfate $(Na_2SO_4)$ in water to make $100 \ mL$ of solution. (in $M$)

$2 \ g$ of substance $A$ is added to $18 \ g$ of water to form a solution. Calculate the mass percentage of the solute. (in $\%$)

Calculate the mole fraction of urea in an aqueous solution of $1 \ m$ urea $(NH_2CONH_2)$.

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