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Faraday's Constant

Q. How much Pt is deposited and at which electrode in the reaction Pt2+ + 2e- --> Pt, if electrolysis is allowed to occur for 3 hours with a steady current of 2.5 amps.

Solved • Apr 29, 2020

Faraday's Constant

Q. How much Pt is deposited and at which electrode in the reaction Pt2+ + 2e- --> Pt, if electrolysis is allowed to occur for 3 hours with a steady current of 2.5 amps.

Solved • Apr 27, 2020

Faraday's Constant

Q. The most useful ore of aluminum is bauxite, in which Al is present as hydrated oxides, Al2O3 XH2O. The number of kilowatt-hours of electricity required to produce of 3.50 kg of aluminum from electrolysis of compounds from bauxite is ________ when the applied emf is 4.50 V

Solved • Apr 18, 2020

Faraday's Constant

Q. How many minutes will it take to electroplate 31.1 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.

Solved • Mar 7, 2020

Faraday's Constant

Q. An electrolytic process oxidizes nickel sulfide in a two-step reaction: Ni3S2(s) → Ni^2+(aq) + 2NiS(S) + 2e^- 2NiS(s) → 2Ni^2+(aq) + 2S(s) + 4e^- Ni3S2(s) → 3Ni^2+(aq) + 2(s) + 6e^- What mass of Ni2+ is produced in solution by passing a current of 67.0 A for a period of 12.0 h, assuming the cell is 85.0 % efficient? Express your answer numerically in grams.

Solved • Mar 5, 2020

Faraday's Constant

Q. How many minutes will it take to electroplate 60.1 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.

Solved • Mar 5, 2020

Faraday's Constant

Q. What mass of (Cu(s) is electroplated by running 13.5 A of current through a Cu^2+ (aq) solution for 4.00 h? Express your answer to three significant figures and include the appropriate units.

Solved • Mar 5, 2020