Assertion: One molal aqueous solution of gluc | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) $Molality = \frac{	ext{Number of moles of solute}}{	ext{Weight of solvent in kg}}$For glucose $(C_6H_{12}O_6)$,the molar mass is $180 \, g/mol$.

Vedclass · Accepted Answer

If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

Vedclass · Answer

(A) $Molality = \frac{	ext{Number of moles of solute}}{	ext{Weight of solvent in kg}}$For glucose $(C_6H_{12}O_6)$,the molar mass is $180 \, g/mol$.Number of moles of glucose = $\frac{180 \, g}{180 \, g/mol} = 1 \, mol$.Since the solvent weight is $1 \, kg$,the molality is $\frac{1 \, mol}{1 \, kg} = 1 \, m$.Thus,the assertion is correct.The definition of a one molal solution is a solution containing $1 \, mole$ of solute in $1000 \, g$ $(1 \, kg)$ of solvent,which makes the reason correct and the correct explanation for the assertion.

Assertion: One molal aqueous solution of glucose contains $180 \, g$ of glucose in $1 \, kg$ water.
Reason: Solution containing one mole of solute in $1000 \, g$ of solvent is called one molal solution.

Similar Questions

The molality of $15\% \,(w/V)$ solution of $H_2SO_4$ with density $1.1\, g/cm^3$ is

The volumes of $4\,N\, HCl$ and $10\,N\, HCl$ required to make $1\, L$ of $6\,N\, HCl$ are

What is the relation between molality $(m)$ of the solution and molar mass $(M_2)$ of the solute,where $W_2$ is the mass of solute in grams and $W_1$ is the mass of solvent in grams?

The molarity of $0.006 \ mol$ of $NaCl$ in $100 \ mL$ solution is (in $M$)

If the mole fraction of $H_2SO_4$ in an aqueous solution of $H_2SO_4$ is $0.1$,then the molality of the solution is ........... $m$.

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Assertion: One molal aqueous solution of glucose contains $180 \, g$ of glucose in $1 \, kg$ water.Reason: Solution containing one mole of solute in $1000 \, g$ of solvent is called one molal solution.