Question

how many moles of atoms are contained in 392g of sulphuric acid

Answer 1

Molecular mass of sulphuric acid = 98g

Given mass = 392g

Number of moles = Given mass/molecular mass

So moles = 392/98 = 4

Moles of atom = 4 X avagadro number

= 4 X 6.023 x 10^23 = 2.4092 x 10^24