
Concept explainers
(a)
Interpretation:
If a particle view of HBr is drawn with 10 H+ ions then the number of Br- will be required must be explained.
Concept Introduction :
HBr is an acid which undergoes dissociation to produce one H+ and one Br-.
(a)

Answer to Problem 5E
10 Br- will be required.
Explanation of Solution
The dissociation of HBr can be shown as
Thus, it is clear than the number of H+ andBr- is same. So for 10 H+ ions 10 Br- ions will be required.
(b)
Interpretation:
A particle view of HBr must be drawn with 10 H+ ions.
Concept Introduction :
Number of H+ and Br- will be same as 1 HBr produces 1 H+ and 1 Br-.
(b)

Answer to Problem 5E
A sketch is shown below for HBr with 10 H+ ions.
Here, red dots represent H+ and black dots represent Br-.
Complete dissociation of HBr takes place because it is a strong acid.
Explanation of Solution
From the sketch it is clear that number of H+ and Br- ions is same. For 10 red dots (H+) there are 10 black dots (Br-).
Chapter U4 Solutions
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