Question

Calculate the total number of electrons present in one mole of methane

Answer 1

The number of electrons present in 1 molecule of methane is
CH₄ =  1(6) + 4(1) = 10 electrons.
1 molecule of methane has 10 electrons.
1 mole of methane has 6.023X10²³ molecules of methane.
Number of electrons present in 1 molecule of methane = 10
Number of electrons present in  6.023X10²³ molecules of methane = 6.023X10²³ X 10 
= 6.023X10²⁴ electrons