You have an electrochemical cell constructed using a platinum (Pt) wire immersed in a copper (Cu) solution
Question:
You have an electrochemical cell constructed using a platinum (Pt) wire immersed in a copper (Cu) solution containing 1.0 M Cu2+ and 1.0 M Cu+. The other half of the cell is constructed by immersing a thallium rod (Tl) in a solution of 1.0 M Tl+. Given the standard reduction potentials:
????????|????????2+ → ????0 = +0.342 ???? ????????|????????2+, ????????+ → ????0 = +0.153 ???? ????????|????????+ → ????0 = −0.336 ???? ????????|????????3+,????????+ →????0 =+1.252????
A) Draw on the diagram of the electrochemical cell:
-- where these species are: Cu2+(aq), Cu+(aq), Tl+(aq), Tl(s), Pt(s) -- which direction electrons would flow
-- which direction the positive ions would flow.
B) Write the half-cell reactions for the overall reaction:
C) Calculate the electromotive force of the cell:
D) Calculate the Gibb's Energy change for the cell:
E) Calculate the equilibrium constant for the cell at 25.0 °C:
F) What is the cell voltage if the Tl+ concentration is increased by 10-fold?