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Faraday's Constant

Q. 10. How much current (in A to one decimal place) is needed to produce 100.0 g of gold in 3.00 hr? Au^3+(aq) + 3e^- → Au(s)

Solved • Oct 11, 2019

Faraday's Constant

Q. 9. How much time (in hr to two decimal places) must pass to produce 50.0 g of gold using a 6.50 A current? Au^3+(aq) + 3e^- → Au(s)

Solved • Oct 11, 2019

Faraday's Constant

Q. What mass of lead sulfate is formed in a lead-acid storage battery when 1.50 g of Pb undergoes oxidation? m= g?

Solved • Nov 7, 2019

Faraday's Constant

Q. The reaction 2 Ag^+(aq) + Fe(s) → Fe^2+(aq) + 2 Ag(s) taking place in a battery generates a current of 2 amp. How much Fe(S) is consumed in 1 hour? 1. 4.16 g 2. 3.46 g 3. 2.08 g 4. 1.04 g 5. 8.32 g

Solved • Oct 23, 2019

Faraday's Constant

Q. What current would be required to produce 19.7 g of Au(s)from Au^3+(aq) in 4 hours? 1. 2 A 2. 20 A 3. 0.67 A 4. 28945 A 5. 120 A 6. 395 A

Solved • Oct 23, 2019

Faraday's Constant

Q. What statement about the Faraday is FALSE?

Solved • Oct 23, 2019

Faraday's Constant

Q. A steel surface has been electroplated with 5.10 g of vanadium (V, molar mass = 51 g/mol). If 2.90x10^4 C of charge were used, what was the original oxidation number of V? 1. +5 1. +1 3. +4 4. +2 5. +3 6. +6

Solved • Oct 23, 2019