wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

3.011×1023 molecules of a gas weigh 14 g. Calculate the molecular mass of the gas.

A
12 u
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
14 u
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
18 u
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
28 u
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

The correct option is D 28 u
We know,
1 u=1.66054×1024 g
Therefore, 14 g=141.66054×1024 u
=8.431×1024 u
Given, 3.011×1023 molecules of a gas weigh = 14 g
So molecular mass of the gas is =8.431×10243.011×1023 u
=28 u

flag
Suggest Corrections
thumbs-up
1
Join BYJU'S Learning Program
Join BYJU'S Learning Program
CrossIcon