Consider a galvanic cell at T = 298K. F = 96 485c.At the beginning (to), [Ca²+] = 0.01M, [H*] = 1M, [HfO²*] = 2M.Consider the half-reactions below:Ca2* (ag) + 2e → Ca(s)E° red= - 2.76 VHfO2* (ag) + 2H* (aq) + 4e → Hf(s) +H2O)E°red = -1.72 VFind the general reaction, E°cell, and identify the cathode and the anode. Indicate the direction of the flow ofa.electrons (from which solid plate to the other solid plate).b.Write the line notation for this cell.С.Find AGO.*d.Express and calculate Q (at to)е.Express and calculate K.f.What value do you expect for Ecell at this point? Why?g.Find Ecell (at to)After a certain period of time (t,), the H* concentration is one-fifth of its initial concentration.*h. Do the RICE and find the concentrations of all species at t,i.Find the pH at t, in two different ways.*¥j. If no other species were in solution, what could be the pH and the concentration of H* at equlibrium? (Nocalculations needed)*¥k. If we were to redo the experiment at 310K. Would Ecell be larger, smaller or equal (than Ecell in the abovesituation) at to, t1 and at equilibrium? (No calculations needed)

Answered: Image /qna-images/answer/7953a3aa-66b6-4bcd-886e-153c503c7c5d.jpg

Consider a galvanic cell at T = 298K. F= 96 485c. At the beginning (to), [Ca²+] = 0.01M, [H*] = 1M, [HfO²*] = 2M. Consider the half-reactions below: Ca2* (ag) + 2e → Ca(s) E° red = - 2.76 V HfO2* (ag) + 2H* (aq) + 4e → Hf(s) + H2O) E°red = -1.72 V Find the general reaction, E°cell, and identify the cathode and the anode. Indicate the direction of the flow of a. electrons (from which solid plate to the other solid plate). b. Write the line notation for this cell. C. Find AGO.

Consider a galvanic cell at T = 298K. F= 96 485c. At the beginning (to), [Ca²+] = 0.01M, [H] = 1M, [HfO²] = 2M. Consider the half-reactions below: Ca2* (ag) + 2e → Ca(s) E° red = - 2.76 V HfO2* (ag) + 2H* (aq) + 4e → Hf(s) + H2O) E°red = -1.72 V Find the general reaction, E°cell, and identify the cathode and the anode. Indicate the direction of the flow of a. electrons (from which solid plate to the other solid plate). b. Write the line notation for this cell. C. Find AGO.

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter17: Electrochemistry

Section: Chapter Questions

Problem 135CWP: Consider a galvanic cell based on the following half-reactions: a. What is the expected cell...

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