Copper(II) sulfate solutions Reaction quotient (Q) Cell potential (mV) 1 M and 0.5 M 0.5 8.8 1 Mand 0.1 M 0.1 29.4 1 Mand 0.05 M 0.05 38.3 1 Mand 0.01 M 0.01 58.0 1 M and 0.001 M 0.001 87.5 Slope -29.08 Unknown cell potential (mV) 32.8 Concentration of unknown (M)

Copper(II) sulfate solutions Reaction quotient (Q) Cell potential (mV) 1 M and 0.5 M 0.5 8.8 1 Mand 0.1 M 0.1 29.4 1 Mand 0.05 M 0.05 38.3 1 Mand 0.01 M 0.01 58.0 1 M and 0.001 M 0.001 87.5 Slope -29.08 Unknown cell potential (mV) 32.8 Concentration of unknown (M)

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter21: Potentiometry

Section: Chapter Questions

Problem 21.2QAP

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Concept explainers

Electrolysis

Electrolysis is defined as the process of breaking down ionic compounds into their constituent elements by passing a direct electric current through the compound in a fluid state. The cathode reduces cations, while the anode oxidizes anions. An electrolyte, electrodes, and some form of external power source are the main components required for conducting electrolysis. A partition, such as an ion-exchange membrane or a salt bridge, may also be used, but this is optional. These are primarily used to prevent the products from diffusing near the opposing electrode.

Question

Copper(II) sulfate solutions
Reaction quotient (Q)
Cell potential (mV)
1 Mand 0.5 M
0.5
8.8
1 M and 0.1 M
0.1
29.4
1 M and 0.05 M
0.05
38.3
1 M and 0.01 M
0.01
58.0
1 M and 0.001 M
0.001
87.5
Slope
-29.08
Unknown cell potential (mV)
32.8
Concentration of unknown (M)

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