
Concept explainers
(a)
Interpretation:
To identify the oxidizing agent and reducing agent in the given reaction.
Concept introduction:
An oxidizing agent is a species which reduce other species by gaining electrons in a
The oxidation number of an atom is the charge that atom would have if the compound was composed of ions or the total number of electrons that an atom gain or loss to form a
(a)

Answer to Problem 81GQ
The
Explanation of Solution
The balanced chemical equation between
The oxidation number of nitrogen in
The oxidation number of nitrogen in
(b)
Interpretation:
To calculate the mass of
Concept introduction:
(b)

Answer to Problem 81GQ
The mass of
Explanation of Solution
The mass of
Given:
The mass of
The balanced chemical equation between
The number of moles
From equation (1), one mole of
The mass
Therefore, the mass of
From equation (1), one mole of
The mass
Therefore, the mass of
From equation (1) it is clear that, one mole of
The mass
Therefore, the mass of water molecule produced from
From equation (1), one mole of
The mass
Therefore, the mass of
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Chapter 21 Solutions
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