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This document contains information about electrode potentials and corrosion. Part 1 lists the potential differences between various metal electrodes in a sodium chloride solution. It also discusses how corrosion occurs when a more active metal is in contact with a less active metal. Part 2 provides the potential differences for a copper sulfate solution and a diluted copper sulfate solution, and explains how dilution affects potential difference by decreasing ion concentration in the electrolyte.
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- 1. DATA / ANALYSIS PART 1 Solution: sodium chloride solution. Group (terminal/electrode) sign/ Positive terminal Negative terminal potential different (賊0.001)V Copper Aluminium +1.641 Copper Zinc +0.794 Copper Ferum +0.552 Numerical order from the most positive to the most negative. (potential) Aluminium Zinc Ferum Copper Metal increasing activity ANSWER FOR QUESTION IN PART 1 1. Voltage different for two any point in a circuit (terminal) makes current flow. 2. There is no different sign in potential different. 3.
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