Part A What mass of Cu(s) is electroplated by running 23.5 A of current through a Cu?+ (aq) solution for 4.00 h? Express your answer to three significant figures and include the appropriate units. HẢ Value Units Submit Request Answer Part B How many minutes will it take to electroplate 25.1 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.
Part A What mass of Cu(s) is electroplated by running 23.5 A of current through a Cu?+ (aq) solution for 4.00 h? Express your answer to three significant figures and include the appropriate units. HẢ Value Units Submit Request Answer Part B How many minutes will it take to electroplate 25.1 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.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Can someone please help with question 9
![1302 - 4.3 - + Analysis of Electroplating - Copy - Copy
9 of 15
I Review I Constants | Periodic Table
When electricity (the flow of electrons) is passed through a solution, it causes an oxidation-reduction (redox) reaction
to occur. If the solution contains a metal cation such as Ag+ , the flow of electrons will reduce the silver ion, causing
solid silver to plate onto the electrode. The amount of metal plated depends on the number of electrons passed. The
total charge of a mole of electrons is 96,485 coulombs (C) and
1 ampere (A) = 1 coulomb/second (C/s)
Part A
What mass of Cu(s) is electroplated by running 23.5 A of current through a Cu+ (aq) solution for 4.00 h?
Express your answer to three significant figures and include the appropriate units.
?
Value
Units
Submit
Request Answer
Part B
How many minutes will it take to electroplate 25.1 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.
HÀ
Value
Units
Submit
Request Answer](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff71bf373-e54a-4095-b43d-f9cad2379f89%2F3f437be4-0438-420d-b071-ce65047c3af9%2Fheg3bxl_processed.jpeg&w=3840&q=75)
Transcribed Image Text:1302 - 4.3 - + Analysis of Electroplating - Copy - Copy
9 of 15
I Review I Constants | Periodic Table
When electricity (the flow of electrons) is passed through a solution, it causes an oxidation-reduction (redox) reaction
to occur. If the solution contains a metal cation such as Ag+ , the flow of electrons will reduce the silver ion, causing
solid silver to plate onto the electrode. The amount of metal plated depends on the number of electrons passed. The
total charge of a mole of electrons is 96,485 coulombs (C) and
1 ampere (A) = 1 coulomb/second (C/s)
Part A
What mass of Cu(s) is electroplated by running 23.5 A of current through a Cu+ (aq) solution for 4.00 h?
Express your answer to three significant figures and include the appropriate units.
?
Value
Units
Submit
Request Answer
Part B
How many minutes will it take to electroplate 25.1 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.
HÀ
Value
Units
Submit
Request Answer
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