Question

calculate the mass of electron contained in 64 gram of ch4

Answer 1

number of electrons in an atom of carbon + 4 X (number of electrons in an atom of hydrogen)

= 6 + (4 X 1)

= 10

Therefore 1 molecule of CH4 = 10 electrons

So 6.023 X 1023 molecules of CH4 = 10 X 6.023 X 1023 electrons

= 6.023 X 1024 electrons