Answer to Question #198851 in General Chemistry for Alex

Question #198851

Consider the titration of 50.0 mL of 0.0200 M In+ by 0.0500 m Cu2+ using Pt and

saturated calomel electrodes to find the end point.

a. Write a balanced titration reaction.

b. Write two different half-reactions for the indicator electrode.

c. Write two different Nernst equations for the net cell reaction.

d. Calculate E at the following volumes of Cu2+: 1.00, 20.0, 39.0, 40.0, 41.0, and 80.0

mL. Sketch the titration curve.

2. Consider the titration of 50.0 mL of 0.0250 M Fe3+ by 0.0500 M Cu+ to give Fe2+ and Cu2+ ,

using Pt and saturated AgAgCl electrodes to find the end point.

a. Write a balanced titration reaction.

b. Write two different half-reactions for the indicator electrode.

c. Write two different Nernst equations for the net cell reaction.

d. Calculate E at the following volumes of Cu2+: 1.0, 12.5, 24.5, 25.0, 25.5 and 30.0

mL. Sketch the titration curve 


1
Expert's answer
2021-05-31T02:24:52-0400

1)


a)  Balanced titration reaction



b) half-reaction


Eo = 0.4 V


Eo = 0.161 V


c)Nernst equations for half reactions






2)


a)  Balanced titration reaction



b)half-reaction


Eo = 0.161 V


Eo = 0.767 V


c) Nernst equations for half reactions






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