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Fundamentals Of Analytical Chemistry

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter22: Bulk Electrolysis: Electrogravimetry And Coulometry

Section: Chapter Questions

Problem 22.26QAP

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Question

Calculate the Eqalibium constant (K) with the complexation reaction, In a galvanic cell. Ammonia was added to
coppersolution and formed complex I need to find the amount of free ammonia and free copper ions. use log k value in
calculatons and nernst equation.
cell looks like this :Cu(s)I (copperions, aq)1M: NH3 (4M) II (copperion) 0.1M I Cu(s)
Measured EMS = +0.407 V, find molar ratio and calculate the K value. 1 part of 1 M copperions was added with 9 parts
of 4 M Ammonia. Thank you a tons!

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