Question

Calculate the no. of molecules present in 6.4 gm methane ?

Answer 1

hey dear
here is your answer

no. of moles = 6.4/16 = 0.4
so, no. of molecules = 0.4*6*10²³ = 2.4*10²³

hope it helps :)

Answer 2

the no of moles of methane = 6.4/16=0.4
one mole have avagadro number of molecules
avagadro number is 6×10^23
so,the total no of methane molecules=0.4×6×10^23=2.4×10^23 molecules