i need help solving these problems. the second problem, its just part b. 1) 2)

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i need help solving these problems. the second problem, its just part b.
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I Need Help Solving These Problems The Second Problem Its Just Part B 1 2 1 (32.73 KiB) Viewed 24 times

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A copper, Cu(s), electrode is immersed in a solution that is 1.00 M in ammonia, NH3, and 1.00 Min tetraamminecopper(II). [Cu(NH3)4]2+. If a standard hydrogen electrode is used as the cathode, the cell potential, Ecell. is found to be 0.074 V at 298 K.. Part A Based on the cell potential, what is the concentration of Cu²+ in this solution? Express your answer to one significant figure and include the appropriate units. View Available Hint(s) HÅ [Cu²+] = Value Submit Previous Answers Units GIMO

Use the standard reduction potentials shown here to answer the questions. Reduction half-reaction E° (V) Cu2+ (aq) + 2e →Cu(s) 0.337 2H+ (aq) + 2e →H₂(g) 0.000 A te for

When electricity (the flow of electrons) is passed through a solution, it causes an oxidation-reduction (redox) reaction to occur. If the solution contains a metal cation such as Ag, the flow of electrons will reduce the silver ion, causing solid silver to plate onto the electrode. The amount of metal plated depends on the number of electrons passed. The total charge of a mole of electrons is 96,485 coulombs (C) and 1 ampere (A) = 1 coulomb/second (C/s).

on a will e s) Part A What mass of Cu(s) is electroplated by running 11.5 A of current through a Cu²+ (aq) solution for 4.00 h? Express your answer to three significant figures and include the appropriate units. ▸ View Available Hint(s) 54.5 g Submit Previous Answers ✓ Correct Part B How many minutes will it take to electroplate 57.1 g of gold by running 5.00 A of current through a solution of Au* (aq)? Express your answer to three significant figures and include the appropriate units. ▸ View Available Hint(s) 5.59 HÅ Review | Constants I Periodic Table S Pearson