1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

# Molarity and molality of a solution of a liquid (mol wt. = 50) in aqueous solution is 9 and 10 respectively. What is the density of solution?

A
1g/cc
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
0.95g/cc
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
1.05g/cc
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
1.35g/cc
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

## The correct option is D 1.35g/ccMolarity= 9MMolality= 10 molalMolarity is the number of moles of solute dissolved per 1000ml of solution.Molality is the number of moles of solute dissolved per 1000g of solvent.9 moles of the compound are present in 1000ml of solution. Then 1 mole of compound would be present in:- 1000/9=110ml10 moles of compound are present in 1000kg of solvent1 mole of compound would be present in,Mass of solute 10×50=500gTotal 1000+500=1500/10=150 per gDensity= MassVolume=150110=1.35g/cc

Suggest Corrections
0
Join BYJU'S Learning Program
Related Videos
Depression in Freezing Point
CHEMISTRY
Watch in App
Join BYJU'S Learning Program