On the basis of electrode potentials from standard emf series, analyze corrosion behavior of materials and identify the metal pair which will corrode fastest between the following pairs: 1. Iron-Tin 3/08 2. Copper-Tin 3. Iron-Zinc 4. Copper-Zinc Standard Increasingly inert (cathodic) Reaction Electrode Electrode Potential, V V) Cu2++2e--Cu 0.34 2H++2e-+H2 10

On the basis of electrode potentials from standard emf series, analyze corrosion behavior of materials and identify the metal pair which will corrode fastest between the following pairs: 1. Iron-Tin 3/08 2. Copper-Tin 3. Iron-Zinc 4. Copper-Zinc Standard Increasingly inert (cathodic) Reaction Electrode Electrode Potential, V V) Cu2++2e--Cu 0.34 2H++2e-+H2 10

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter21: Potentiometry

Section: Chapter Questions

Problem 21.17QAP

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Halide ions can he deposited at a silver anode, the reaction being Ag(s) + X- AgX(s) +e- Suppose that a cell was formed by immersing a silver anode in an analyte solution that was 0.0250 M Cl-,Br-, and I -ions and connecting the half-cell to a saturated calomel cathode via a salt bridge. (a) Which halide would form first and at what potential? Is the cell galvanic or electrolytic? (b) Could I- and Br- be separated quantitatively? (Take 1.00 l0-5 M as the criterion for quantitative removal of an ion.) If a separation is feasible, what range of cell potential could he used? (c) Repeat part (b) for I- and Cl-. (d) Repeat part (b) for Br- and Cl-.
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An alloy made up of tin and copper is prepared by simultaneously electroplating the two metals from a solution containing Sn(NO3)2 and Cu(NO3)2.If 20.0% of the total current is used to plate tin, while 80.0% is used to plate copper, what is the percent composition of the alloy?
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