(B) Let the ratio of volumes be $x : y$.Using the formula for the concentration of a mixture: $M_{mix} = \frac{M_1V_1 + M_2V_2}{V_1 + V_2}$$0.7 = \fra

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

(B) Let the ratio of volumes be $x : y$.Using the formula for the concentration of a mixture: $M_{mix} = \frac{M_1V_1 + M_2V_2}{V_1 + V_2}$$0.7 = \frac{0.4x + 0.9y}{x + y}$$0.7(x + y) = 0.4x + 0.9y$$0.7x + 0.7y = 0.4x + 0.9y$$0.3x = 0.2y$$\frac{x}{y} = \frac{0.2}{0.3} = \frac{2}{3}$Thus,the ratio is $2 : 3$.

Class 11 Chemistry Some Basic Concepts of Chemistry Chemical stoichiometry

Medium

For what ratio of volumes should $0.4 \, M \ HCl$ and $0.9 \, M \ HCl$ be mixed to obtain a solution of $0.7 \, M \ HCl$?

A
$4 : 9$
B
$2 : 3$
C
$3 : 2$
D
$1 : 1$

Explore More

Browse All

Question Bank

All Subjects

Class 11 Questions

Class 11

Chemistry Questions

Chapter

Some Basic Concepts of Chemistry

Subtopic

Chemical stoichiometry

What is the weight of carbon in $kg$ required to produce $270 \ kg$ of aluminum from bauxite by the Hall-Heroult process?

Easy

View Solution

$A$ solution of $CaCl_2$ is $0.5 \, mol/L$. The number of moles of chloride ions in $500 \, mL$ of this solution will be:

Medium

View Solution

$10 \ mL$ of conc. $H_2SO_4$ $(18 \ M)$ is diluted to $1 \ L$. The approximate strength of the dilute acid is $........... \ N$.

Easy

View Solution

What volume of decimolar solution should be mixed in a solution of the same solute $(0.5 \, M, \, 200 \, mL)$ to make it $0.25 \, M$?

Medium

View Solution

What is meant by stoichiometry?

Easy

View Solution

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial

For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free

For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo

For what ratio of volumes should $0.4 \, M \ HCl$ and $0.9 \, M \ HCl$ be mixed to obtain a solution of $0.7 \, M \ HCl$?

Similar Questions

What is the weight of carbon in $kg$ required to produce $270 \ kg$ of aluminum from bauxite by the Hall-Heroult process?

$A$ solution of $CaCl_2$ is $0.5 \, mol/L$. The number of moles of chloride ions in $500 \, mL$ of this solution will be:

$10 \ mL$ of conc. $H_2SO_4$ $(18 \ M)$ is diluted to $1 \ L$. The approximate strength of the dilute acid is $........... \ N$.

What volume of decimolar solution should be mixed in a solution of the same solute $(0.5 \, M, \, 200 \, mL)$ to make it $0.25 \, M$?

What is meant by stoichiometry?

Vedclass Test Series

Exam Paper Generator

Online Exam Module