Zinc and sodium metal each react with sulfuric acid according to the following equations. Zn(s)+H2SO4(aq)⟶ZnSO4(aq)+H2(g)

2Na(s)+H2SO4(aq)⟶Na2SO4(aq)+H2(g)
A 27.59 g mixture of zinc and sodium is reacted with a stoichiometric amount of sulfuric acid. The reaction mixture is then reacted with 182 mL of 2.88 M barium chloride to produce the maximum possible amount of barium sulfate.

1.) Determine the percent sodium by mass in the original mixture.

2.) If 90.22 mL of sulfuric acid was added, what was the concentration of the sulfuric acid?