CHM 1025C Module Eight Solutions Name: ___________

Part F: Solution Reaction Problems 10 points

Acid-Base Neutralization:

1. Calculate the molarity of a Calcium hydroxide solution if 18.50 mL of it requires 28.27 mL of a 0.0125 M HCl to reach its neutralization point.

REDOX Titration: (Bonus 10 points)

2. A KMnO₄ (aq) solution is to be standardized by titration against As₂O₃(s), A 0.1156 g sample of As₂O₃ requires 27.08 mL of KMnO₄. What is the molarity of the KMnO₄?

As₂O₃ + MnO₄ ^1- + H₂O + H ¹⁺ -------> H₃AsO₄ + Mn ²⁺