Concept explainers
(a)
Interpretation:
The
Concept introduction:
VSEPR theory helps to draw the molecular shape as:
Total number of valence electron pairs | Number of bond pairs | Number of lone pairs | Geometry and shape |
2 | 2 | 0 | linear |
3 | 3 | 0 | Trigonal planar |
2 | 1 | bent | |
4 | 4 | 0 | Tetrahedral |
3 | 1 | Pyramidal | |
2 | 2 | Bent |
Shape of molecules gives the bond angle.
(a)
Answer to Problem 49A
The
Explanation of Solution
Lewis structure of
It shows, there are 2 bond pairs and 2 lone pairs around oxygen atom. Therefore, by VSEPR theory its shape is pyramidal and
(b)
Interpretation:
The
Concept introduction:
VSEPR theory helps to draw the molecular shape as:
Total number of valence electron pairs | Number of bond pairs | Number of lone pairs | Geometry and shape |
2 | 2 | 0 | linear |
3 | 3 | 0 | Trigonal planar |
2 | 1 | bent | |
4 | 4 | 0 | Tetrahedral |
3 | 1 | Pyramidal | |
2 | 2 | Bent |
Shape of molecules gives the bond angle.
(b)
Answer to Problem 49A
The
Explanation of Solution
Lewis structure of
It shows, there are 3 bond pairs and 1 lone-pair around nitrogen atom. Therefore, by VSEPR theory its shape is pyramidal and bond angle is
(c)
Interpretation:
The
Concept introduction:
VSEPR theory helps to draw the molecular shape as:
Total number of valence electron pairs | Number of bond pairs | Number of lone pairs | Geometry and shape |
2 | 2 | 0 | linear |
3 | 3 | 0 | Trigonal planar |
2 | 1 | bent | |
4 | 4 | 0 | Tetrahedral |
3 | 1 | Pyramidal | |
2 | 2 | Bent |
Shape of molecules gives the bond angle.
(c)
Answer to Problem 49A
The
Explanation of Solution
Lewis structure of
It shows, there are 4 bond pairs and no lone pairs around nitrogen atom. Therefore, by VSEPR theory its shape is tetrahedral and bond angle is normal tetrahedron angle.
(d)
Interpretation:
The
Concept introduction:
VSEPR theory helps to draw the molecular shape as:
Total number of valence electron pairs | Number of bond pairs | Number of lone pairs | Geometry and shape |
2 | 2 | 0 | linear |
3 | 3 | 0 | Trigonal planar |
2 | 1 | bent | |
4 | 4 | 0 | Tetrahedral |
3 | 1 | Pyramidal | |
2 | 2 | Bent |
Shape of molecules gives the bond angle.
(d)
Answer to Problem 49A
The
Explanation of Solution
Lewis structure of
It shows, there are 4 bond pairs and no lone pairs around carbon atom. Therefore, by VSEPR theory its shape is tetrahedral and bond angle is normal tetrahedron angle.
Chapter 12 Solutions
World of Chemistry, 3rd edition
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