A small part with a surface area of 3.0 cm2 is plated with a gold coating that is 5.00x10-4 mm thick. The density of gold is 19.32 g/cm3. a) What mass of gold is in this coating? b) If a barrel plating run has 6000 of these parts in a single barrel, how long would the run take if the current was 15 A? (Gold is effectively plated from Au+(aq)
A small part with a surface area of 3.0 cm2 is plated with a gold coating that is 5.00x10-4 mm thick. The density of gold is 19.32 g/cm3. a) What mass of gold is in this coating? b) If a barrel plating run has 6000 of these parts in a single barrel, how long would the run take if the current was 15 A? (Gold is effectively plated from Au+(aq)
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter13: Electrochemistry
Section: Chapter Questions
Problem 13.78PAE: A small part with a surface area of 2.62 cm2 is plated with a gold coating that is 5.00104 mm thick....
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A small part with a surface area of 3.0 cm2 is plated with a gold coating that is 5.00x10-4 mm thick. The density of gold is 19.32 g/cm3.
a) What mass of gold is in this coating?
b) If a barrel plating run has 6000 of these parts in a single barrel, how long would the run take if the current was 15 A? (Gold is effectively plated from Au+(aq)
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