Substrate Record: qid 4561

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qid 4561 · chemistry

Question: (a) You desire to plate 5g of Ag from a solution of Ag^+ . Determine the number of amperes required over a period of 1000 seconds. (b) With a current of 0.5 ampere, how much time is required to plate out 10g of gold from an Au^3+ solution?

1. 3.50 amps and 32,000 seconds
2. 4.45 amps and 29,400 seconds
3. 4.75 amps and 28,500 seconds
4. 2.95 amps and 33,000 seconds
5. 6.00 amps and 25,000 seconds
6. 4.20 amps and 27,000 seconds
7. 3.95 amps and 30,500 seconds
8. 5.50 amps and 26,500 seconds
9. 4.00 amps and 31,000 seconds
10. 5 amps and 28,000 seconds

Our answer: B. 4.45 amps and 29,400 seconds Source quote machine-checked (exact quote)

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