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Course: UP Class 12 Chemistry > Unit 3

Lesson 2: Nernst equation
Science
UP Class 12 Chemistry
Electrochemistry
Nernst equation
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Calculating Cell Potentials using the Nernst Equation

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Problem

The following reactions occur in a cell:
At anode:
Cr(s)→CrA3+(0.005M)+3eA−
At cathode:
HA+(0.1M)+eA−→12HA2(1bar)
Calculate EAcell.
Given: EAocell=0.74V
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
  • an exact decimal, like 0.75
  • a multiple of pi, like 12 pi or 2/3 pi
V.