Question

A 40.00 mL aliquot of 0.0500 M HNO₂ is diluted to 75.0 mL and titrated with 0.0800 M Ce⁴⁺. Assume the hydrogen ion concentration is at 1.00 M throughout the titration. Use 1.44 V for the formal potential of the cerium system.

Calculate the potential of the indicator electrode with respect to a Ag/AgCl (sat'd) reference electrode after the addition of 5.00, 10.00, 15.00, 20.00, 25.00, 40.00, 45.00, 49.00, 49.50, 49.60, 49.70, 49.80, 49.90, 49.95, 49.99, 50.00, 50.01, 50.05, 50.10, 50.20, 50.30, 50.40, 50.50, 51.00, 55.00, 60.00, 75.00, and 90.00 mL of Ce⁴⁺.

Answer 1