Question

Molten $AlC{l}_3$ is electrolysed with a current of $0.5$ ampere to produce $27$ g $Al.$ How many g-atom of $Al$ are formed?

Answer 1

$27$ g of $Al$ corresponds to 1 mole (or 1 gram atom) as the molecular weight of $Al$ is $27$ g/mol. Thus, $1$ gram atom of $Al$ will be deposited.