Question

If the mass of an electronis 9×10^-28g weight of 1 mole of eletron is

Answer 1

you can use the formula mass =weight ÷gravity

Answer 2

MASS OF I MOLE ELECTRON=MASS OF 6.022X1023 ELECTRONS

Mass of 1electron=9.1*1o-28g

hence mass of 6.022X1023 ELECTRONS =9.1*1o-28gx 6.022X1023