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Stainless steel is known and used for its ability to resist corrosion. More corrosion resistant stainless steels such as those used in building construction contain molybdenum as well as chromium. Chromium metal can be electroplated from an aqueous solution of potassium dichromate. A current of 6.00 A and a voltage of 4.5 V are used in the electroplating. The reduction half-reaction is: Cr₂07¹ (aq) + 14H+ + 12e → 2Cr(s) +7H₂O a. How many grams of chromium can be plated if the current is run for 48 minutes? b. How long will it take to completely convert 215 mL of 1.25 M K2Cr2O7 to elemental chromium?

Stainless steel is known and used for its ability to resist corrosion. More corrosion resistant stainless steels such as those used in building construction contain molybdenum as well as chromium. Chromium metal can be electroplated from an aqueous solution of potassium dichromate. A current of 6.00 A and a voltage of 4.5 V are used in the electroplating. The reduction half-reaction is: Cr₂07¹ (aq) + 14H+ + 12e → 2Cr(s) +7H₂O a. How many grams of chromium can be plated if the current is run for 48 minutes? b. How long will it take to completely convert 215 mL of 1.25 M K2Cr2O7 to elemental chromium?

Chemistry
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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Stainless steel is known and used for its ability to resist corrosion. More corrosion resistant stainless steels such as those used in building construction contain molybdenum as well as chromium. Chromium metal can be electroplated from an aqueous solution of potassium dichromate. A current of 6.00 A and a voltage of 4.5 V are used in the electroplating. The reduction half-reaction is: Cr₂07¹ (aq) + 14H+ + 12e → 2Cr(s) + 7H₂0 a. How many grams of chromium can be plated if the current is run for 48 minutes? b. How long will it take to completely convert 215 mL of 1.25 M K₂Cr2O7 to elemental chromium?
Transcribed Image Text:Stainless steel is known and used for its ability to resist corrosion. More corrosion resistant stainless steels such as those used in building construction contain molybdenum as well as chromium. Chromium metal can be electroplated from an aqueous solution of potassium dichromate. A current of 6.00 A and a voltage of 4.5 V are used in the electroplating. The reduction half-reaction is: Cr₂07¹ (aq) + 14H+ + 12e → 2Cr(s) + 7H₂0 a. How many grams of chromium can be plated if the current is run for 48 minutes? b. How long will it take to completely convert 215 mL of 1.25 M K₂Cr2O7 to elemental chromium?
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