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13 Dec 2019

How many minutes will it take to electroplate 45.1g of gold by running 5.00 A of current through a solution of Au+(aq)?

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Keith LeannonLv2

17 Dec 2019

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How many minutes will it take to electroplate 41.1 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.

What mass of Cu(s) is electroplated by running 30.0 A of current through a Cu2+(aq) solution for 4.00 h?

Express your answer to three significant figures and include the appropriate units.

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Part B

How many minutes will it take to electroplate 46.1 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.

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When electricity (the flow of electrons) is passed through asolution, it causes an oxidation-reduction (redox) reaction tooccur. If the solution contains a metal cation such as \rm Ag^+,the flow of electrons will reduce the silver ion, causing solidsilver to plate onto the electrode. The amount of metal plateddepends on the number of electrons passed.

The total charge of a mole of electrons is 96,500 coulombs (\rm C)and

1 ampere (A) = 1 coulomb/second\; (C/s)

What mass of Cu{(s)} is electroplated by running 13.5 A of currentthrough a {Cu}^{2+}{(aq)} solution for 4.00 \rm h?

How many minutes will it take to electroplate 36.1 g of gold byrunning 5.00 \rm A of current through a solution of{Au}^{+(aq)}?

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How many minutes will it take to electroplate 45.1g of gold by running 5.00 A of current through a solution of Au+(aq)?

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