Question

how to find moles my teacher is not explaining it properly who ever is answering this question please tell your name

Answer 1

To find number of moles of any element, divide its given mass by its molecular mass i.e. n = m/M For eg. We are to find number of moles in 64g of oxygen Given mass of O2(m) = 64g Molecular mass (M) = 32g/mol Thus, no. of moles( n) = m/M 64/32 = 2 moles ------with regards-------