Given, mass =1.6g of methane Therefore, moles of methane =
given mass
molecular mass
=
1.6g
16gmol−1
=0.1mol 1 mole of methane has 6.022×1023 molecules. ∴0.1 mole of methane has 6.022×1023×0.1 molecules =6.022×1022 molecules Now, 1 mole of methane has 10 electrons ∴0.1 mole of methane has =10×6.022×1022 electrons =6.022×1023 electrons