Question

calculate the number of electron in 7.1 gram of chlorine molecules​

Answer 1

no of electron =(7.1/35.5 )×6×10^23×34

0.2 × 6×10^23×34
1.2 ×10^23 ×34
40.8 ×10^23
4.08 × 10^24

Answer 2

7.1/35.5

=0.2

then * by 6.022*10^23=1.2044*10^23