Zinc and sodium metal each react with sulfuric acid according to the following equations. Zn(s) + HSO4 (aq) ZnSO4 (aq) + H(g) 2 Na(s) + HSO4 (aq) - NaSO4 (aq) + H(g) A 25.81 g mixture of zinc and sodium is reacted with a stoichiometric amount of sulfuric acid. The reaction mixture is then reacted with 2.30 10 mL of 2.13 M barium chloride to produce the maximum possible amount of barium sulfate. Determine the percent sodium by mass in the original mixture. mass percent Na : If 85.52 mL of sulfuric acid was added, what was the concentration of the sulfuric acid? concentration: % M