Complete and balance the following
(a)
Interpretation:
The given redox chemical equation, which takes place in acidic medium, is to be completed and balanced.
Explanation of Solution
The skeleton chemical equation is shown as follows,
The oxidation states are assigned in the above skeleton chemical equation which are shown as follow,
The five electrons are added on the left side of the reduction half-reaction.
Two electrons are added on the right side and change the coefficient of carbon dioxide to
To balance the electrons on both sides of the overall reaction, equation (3) is multiplied with
To balance ionic charge on both of the chemical reactions,
To balance the hydrogen atom
The chemical equation (7) represents the balanced chemical equation for the given reaction.
(b)
Interpretation:
The given redox chemical equation, which takes place in acidic medium, is to be completed and balanced.
Explanation of Solution
The skeleton chemical equation is shown as follows,
The oxidation states are assigned in the above skeleton chemical equation which are shown as follow,
The 10 electrons are added on the left side and change the coefficient of
Two electrons are added on right side and change the coefficient of
To balance the electrons on both sides of the overall reaction, equation (11) is multiplied with
Further, equation (10) and equation (12) are added.
To balance ionic charge on both of the chemical reactions,
To balance the hydrogen atom
The chemical equation (15) represents the balanced chemical equation for the given reaction.
(c)
Interpretation:
The given redox chemical equation, takes place in acidic medium, is to be completed and balanced.
Explanation of Solution
The skeleton chemical equation is shown as follows,
The oxidation states are assigned in the above skeleton chemical equation which are shown as follow,
The two electrons are added on the left side and change the coefficient of
The eight electrons are added on the right side and change the coefficient of
To balance the electrons on both sides of the overall reaction, equation (18) is multiplied with
Further, equation (19) and equation (20) are added.
To balance ionic charge on both sides of the chemical reaction,
To balance the hydrogen atom
The chemical equation (23) represents the balanced chemical equation for the given reaction.
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Chapter 14 Solutions
EBK INTRODUCTION TO CHEMISTRY
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