Milk of Magnesia is a suspension of magnesium hydroxide in water. A common medicine, it is often used as an antacid because it neutralizes hydrochloric acid in the stomach:
Mg(OH)2(s) + 2 HCl(aq) → Mg2 + (aq) + 2 H2O(l)
Calculate the mass of HCl that is neutralized by 2 g of Mg(OH)2(s)