Question

How many molecules of methane, CH4, are contained in a 0.900 gram sample?

0.0563


3.39 x 1022


1.26


1.02 x 1023

Item at position 24

Answer 1

MOLAR MASS=12+4

=16 gmol^-1

number of moles=Mass/ molar mass

=0.900g/16gmol^-1

=0.05625 mol

the answer is first option