6) Chromium can be electroplated from aqueous potassium dichromate, with thereduction shown below. If a current of 6.0A and a voltage of 4.5V are used:Cr207' (aq)Cr20,*+ 14H*(ag)+ 12e¯ → 2Cr(s) + 7H20a) How many hours would it take to completely convert215mL of 1.25M K2Cr2O7 to elemental chromium?b) How many kilowatt-hours of electrical energy arerequired to plate 1.00 g of chromium?

A redox reaction takes place in an electrolytic cell where the electrical energy is fed into the…

6) Chromium can be electroplated from aqueous potassium dichromate, with the reduction shown below. If a current of 6.0A and a voltage of 4.5V are used: Cr20,* + 14H* (ag)+ 12e¯→ 2Cr(s) + 7H20 (aq) a) How many hours would it take to completely convert 215mL of 1.25M K2Cr207 to elemental chromium? b) How many kilowatt-hours of electrical energy are required to plate 1.00 g of chromium?

6) Chromium can be electroplated from aqueous potassium dichromate, with the reduction shown below. If a current of 6.0A and a voltage of 4.5V are used: Cr20,* + 14H* (ag)+ 12e¯→ 2Cr(s) + 7H20 (aq) a) How many hours would it take to completely convert 215mL of 1.25M K2Cr207 to elemental chromium? b) How many kilowatt-hours of electrical energy are required to plate 1.00 g of chromium?

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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Chromium can be electroplated from aqueous potassium dichromate, with the reduction shown below. If a current of 5 A and a voltage of 4.5V are used: Cr20, (aq) + 14H+ (aq)+ 12e¯ → 2Cr(s) + 7H20 How many hours would it take to completely convert 215 mL of 1.11 M K2Cr207 to elemental chromium?
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