A carbon steel plate is exposed to stagnant seawater containing dissolved oxygen and a corrosion rate of icorr = 6.0 x 10-5 A cm-2 is measured. The molar mass of iron is M = 55.8 g mol-¹ and its density is p = 7.8 g cm-³. (a) What is the corrosion rate of the steel plate in mmpy? (b) A zinc plate is then electrically connected to the carbon steel plate and both are immersed in seawater. Which material will form the anode and which the cathode in the resulting galvanic couple? Justify your answer. (c) Write down the relevant anodic and cathodic reactions for (b).

A carbon steel plate is exposed to stagnant seawater containing dissolved oxygen and a corrosion rate of icorr = 6.0 x 10-5 A cm-2 is measured. The molar mass of iron is M = 55.8 g mol-¹ and its density is p = 7.8 g cm-³. (a) What is the corrosion rate of the steel plate in mmpy? (b) A zinc plate is then electrically connected to the carbon steel plate and both are immersed in seawater. Which material will form the anode and which the cathode in the resulting galvanic couple? Justify your answer. (c) Write down the relevant anodic and cathodic reactions for (b).

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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