Question

calulate the number of moles in 5.75g of sodium ( given atomic mass -23)​

Answer 1

ANSWER IS 2.50

LETS US CONSIDER THE NUMBER OF MOLES AS x (5.75 G)

IN 1 MOLE OF SODIUM THERE WILL BE 23 G OF SODIUM

THEREFORE IN X MOLE THERE WILL 5.75/23 WHICH WILL BE APPROX 2.50