Example 5 A sample of zinc corrodes uniformly with a current density of 4.2 x 10° A/cm in solution. (a) What is the corrosion rate of zinc in mg/dm/day? (b) What is the corrosion rate of zinc in mm/year? aqueous (a) Given current density, i = 4.2 x 106 A/cm? density, From the formula: , zinc atomic weight, M = 65.38 g/mol, p= 7.1 g/cm3, n= 2, F = 96 500 coulombs/mole. Mi er Ame At nF

Example 5 A sample of zinc corrodes uniformly with a current density of 4.2 x 10° A/cm in solution. (a) What is the corrosion rate of zinc in mg/dm/day? (b) What is the corrosion rate of zinc in mm/year? aqueous (a) Given current density, i = 4.2 x 106 A/cm? density, From the formula: , zinc atomic weight, M = 65.38 g/mol, p= 7.1 g/cm3, n= 2, F = 96 500 coulombs/mole. Mi er Ame At nF

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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