
Concept explainers
a)
Interpretation:
The strongest oxidizing agent and reducing agent has to be predicted.
Concept introduction:
Standard reduction potential: The voltage associated with a reduction reaction at an electrode when all solutes are 1M and all gases are at 1 atm. The hydrogen electrode is called the standard hydrogen electrode (SHE).
Oxidizing agent: An oxidizing agent gains electron from other species.
Reducing agent: A reducing agent donate electron to other species.
b)
Interpretation:
The substance that can be oxidized by
Concept introduction:
Standard reduction potential: The voltage associated with a reduction reaction at an electrode when all solutes are 1M and all gases are at 1 atm. The hydrogen electrode is called the standard hydrogen electrode (SHE).
Oxidizing agent: An oxidizing agent gains electron from other species.
Reducing agent: A reducing agent donate electron to other species.
c)
Interpretation:
The substance that can be reduced by
Concept introduction:
Standard reduction potential: The voltage associated with a reduction reaction at an electrode when all solutes are 1M and all gases are at 1 atm. The hydrogen electrode is called the standard hydrogen electrode (SHE).
Oxidizing agent: An oxidizing agent gains electron from other species.
Reducing agent: A reducing agent donate electron to other species.
d)
Interpretation:
The overall equation for a cell that delivers a voltage of
Concept introduction:
Procedure for balancing redox equations:
Step 1: Write the unbalanced equation for the reaction in ionic form.
Step 2: Separate the equation into two half-reactions.
Step 3: Balance each half-reactions for number and type of atoms and charges. For reactions in an acidic medium, add
Step 4: Add the two half-reactions together and balance the final equation. The equation must be atomically and electrically balanced. In case of different number of electrons, need to multiply one or both half-reactions to equalize the number of electrons.
Step 5: Finally, the number and type of atoms; charges on both sides of the equation must be same and balanced.

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Chapter 19 Solutions
General Chemistry
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