determine the theoretical yield of lead and identify the limiting reactant if 0.50 g of al and 10.0 ml of 0.350 m of lead(ii) nitrate are allowed to react. 7. how much aluminum is required to produce if 36 g of lead if the aluminum is placed in a beaker with excess lead(ii) nitrate solution? 8. suppose you use a 25.0 ml hcl sample to simulate the acid concentration in the stomach and its reaction to magnesium hydroxide, a common ingredient in antacids. if 14.10 ml of 0.128 m mg(oh)2 was required to neutralize the acid in a titration, what was the concentration of the acid?