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.)
(a) Calculate the potential of the indicator electrode with respect to a AgCl (sat'd) reference electrode after the addition of 5.00, 10.00. 1500. 20.00, 25.00, 40.00, 45.00, 49.00, 49.50, 22.214.171.124. 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 cerium (IV)
(b) Construct a titration curve for these data.
(c) Generate a first- and second-derivative curve for these data. 43 Does the volume at which the second-derivative curve crosses zero correspond to the theoretical equivalence point? Why or why not?
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