new coin having a mass of 2.5133 g is dissolved in nitric acid and only the resulting copper ions were plated out into a platinum cathode that has a mass of 12.0476 g. After all the copper ions have been reduced, the measured mass at the cathode was 12.1454 g. There was no increase in mass at the anode. atomic weight: Cu = 63.55 g/mol A) What type of electroanalytical method was used? B) Is lead present in the coin?
new coin having a mass of 2.5133 g is dissolved in nitric acid and only the resulting copper ions were plated out into a platinum cathode that has a mass of 12.0476 g. After all the copper ions have been reduced, the measured mass at the cathode was 12.1454 g. There was no increase in mass at the anode. atomic weight: Cu = 63.55 g/mol A) What type of electroanalytical method was used? B) Is lead present in the coin?
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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A new coin having a mass of 2.5133 g is dissolved in nitric acid and only the resulting copper ions were plated out into a platinum cathode that has a mass of 12.0476 g. After all the copper ions have been reduced, the measured mass at the cathode was 12.1454 g. There was no increase in mass at the anode. atomic weight: Cu = 63.55 g/mol
A) What type of electroanalytical method was used?
B) Is lead present in the coin?
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