Question

a breaker has 196g of H2SO4 in it number of moles of S atoms in it will be?

Answer 1

One sulfuric (H2SO4) molecule has 2 hydrogen atoms, 1 sulfur atom, and 4 oxygen atoms.

So in total, we have 7 mols of atoms. But that's in 1 mol of sulfuric acid. In two mols of sulfuric acids we have 14 mols of atoms.

and divide 14 by 7 and answer is 2