A 65.00 mL sample of HNO₃ solution is neutralized by exactly 34.16 mL of 0.5841 M Ba(OH)₂. What is the molarity of the HNO₃ solution?

Question

Quizplus · Accepted Answer

The balanced equation for the reaction is 2HNO₃ + Ba(OH)₂ → Ba(NO₃)₂ + 2H₂O. Using the stoichiometry, moles of Ba(OH)₂ = 0.03416 L * 0.5841 M = 0.01995 mol. Since 2 moles of HNO₃ react with 1 mole of Ba(OH)₂, moles of HNO₃ = 2 * 0.01995 mol = 0.03990 mol. Molarity of HNO₃ = 0.03990 mol / 0.06500 L = 0.6139 M.

A 6500 ML Sample of HNO3 Solution Is Neutralized by Exactly

A 6500 ML Sample of HNO₃ Solution Is Neutralized by Exactly