Question

What are the no. Of moles in 18g of magnesium

Answer 1

no.of moles=given mass\molar mass
                 =18/24
                 =0.75mol

Answer 2

the no of moles in 18g of magensium= mass given/molar mass
                                                               =18/24 =3/4 =0.75moles.



hope this helps u.