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Chapter 21: Q21.35 P (page 974)

How is a standard reference electrode used to determine unknownEo half-cell values?

Short Answer

Expert verified

The Standard Hydrogen Electrode (SHE) with Eohalf-cell = 0.0 is the standard reference electrode.

Step by step solution

01

Definition of standard reference electrode

An electrode with a known electrical potential is referred to as a standard reference electrode. The most typical application of a standard reference electrode is to determine the potential of another material in an electrochemical cell.

02

Determining the unknown  Eo half-cell values

The Standard Hydrogen Electrode (SHE) with Eohalf-cell = 0.0 is the standard reference electrode. The SHE is assigned a value greater than O when electrodes force it to serve as an anode. SHE is given a value smaller than when electrodes force her to operate as a cathode

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