Question

The number of electrons gained and lost during the electrolysis of 35.5g of cl-

Answer 1

no of mole = given wt /molecular wt

given wt = 0.355 g

molecular wt of chloride ions = 35.5 g

So,

no of mole = 0.355/35.5 = 10^-2

we also know ,

no of electrons = no of moles × 6.023 × 10²³

= 10-² × 6.023 × 10²³

= 6.023 × 10²¹