Question

Which contain more molecules 4g of methane CH4 4g of oxygen gas O2

Answer 1

through mole formula
n = given mass / molar mass
we get the moles and after finding

we use formula n× 6.022×10*23 to find atoms/molecules by using it we get result

CH4 has large no. of molecules

Answer 2

Given mass of methane CH4 =4g

Molar mass of methane CH4 =16.04g

=Given mass / Molar mass

=4/16.04 = 0.249g

Given mass of carbon dioxide CO2=11g

Molar mass of carbon dioxide CO2=44.01g

=Given mass/Molar mass

=11g/44.01g =0.249g

So,both methane CH4 and carbon dioxide CO2 have same number of molecules.