Question

1 gram of ch4 and 4grams of compound X have equal number of moles.thus the molar mass of X is?

Answer 1

Moles= given mass/molar mass

Given
Moles of CH4 = 1/16 [16 is the molar mass of CH4]

Moles of X = 4/molar mass

Gives moles are equal..

It means


1/16=4/molar mass of X


So Molar mass of X becomes 16×4..

=64..

This is the correct answer..Hope it helped