Concept explainers
a. Which compounds are Bronsted-Lowry acids:
b. Which compounds are Bronsted-Lowry bases:
c. Classify each compound as an acid, a base, or both:
(a)
Interpretation: Among the given compounds, Bronsted-Lowry acids are to be identified.
Concept introduction: Bronsted-Lowry acids are those species which donate proton. They are also known as proton donor. The net charge on Bronsted-Lowry acids can be zero or negative or positive.
Answer to Problem 2.1P
The Bronsted-Lowry acid is
Explanation of Solution
All Bronsted-Lowry acids donate proton.
Hydrogen bromide contain hydrogen atom. Hence, it is a Bronsted-Lowry acid.
Ammonia contains a lone pair of electrons which can be easily donated to form a new bond. Hence, it is a Bronsted-Lowry base.
No hydrogen is present in the
In the given set of compounds, Bronsted-Lowry acid is
(b)
Interpretation: Among the given compounds, Bronsted-Lowry bases are to be identified.
Concept introduction: Bronsted-Lowry bases are those species which can accept a proton. The Base must contain a lone pair or pi bond that could be easily donated to an acid to form a new bond. Bronsted-Lowry base are proton acceptor. The net charge on Bronsted-Lowry base can be zero and negative.
Answer to Problem 2.1P
The Bronsted-Lowry acids are
Explanation of Solution
All Bronsted-lowry bases contain lone pair of electrons or pi bond. In
Figure 1
The molecule
Figure 2
There is neither a pi bond nor a negative charge present in
In the given set of compounds, Bronsted-Lowry acids are
(c)
Interpretation: Among the given compounds, Bronsted-lowry bases are to be identified.
Concept introduction: Bronsted-Lowry bases are those species which can accept a proton. The Base must contain a lone pair or pi bond that could be easily donated to an acid to form a new bond. Bronsted-Lowry base are proton acceptor. The net charge on Bronsted-Lowry base can be zero and negative.
Answer to Problem 2.1P
The Bronsted-Lowry acids are
Explanation of Solution
All Bronsted-Lowry bases contain lone pairs of electrons or pi bond. Bronsted-Lowry acids contain proton.
Ethanol contains hydrogen atom and lone pairs on oxygen atom. Hence, it is a Bronsted-Lowry base as well as a Bronsted-Lowry acid.
Figure 3
Propane contains only hydrogen atoms. Hence, it is a Bronsted-Lowry acid.
Figure 4
Figure 5
The Bronsted-Lowry acids are
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