posted by shawn .
Calculate the number of moles of the indicated ion present in each of the following solutions. Na+ ion in 1.20 L of 0.183 M Na2SO4 solution = ?mol
mols Na2SO4 = M Na2SO4 x L Na2SO4.
Then Na^+ will be twice that since there are two moles Na^+2 for each mole of Na2SO4.