Concept explainers
(a)
Interpretation:
The Lewis structure of molecules or ions, spatial orientation of electron pairs and the simple geometric structure indicating the approximate bond angles of that molecules or ions should be determined.
Concept Introduction:
Lewis structure represents the valence electron arrangement around the atoms of the molecule. Lewis structure can be drawn for ionic or covalent bonds.
When predicting the geometric structure, VSPER theory is used. The three-dimensional structure of atoms in.
Answer to Problem 46CR
Explanation of Solution
For H2 O
Part A Step 1 →
Sum(total atoms)
Step 2 →
Pair of electrons =
Electron pairs for bonds =
Step 3 → Remaining electron pairs = 2
Part B Step 1 → Lewis structure
Step 2 → 4 electron pairs around
Step 3 → But around the
No: of bonding pairs =
No: of non- bonding pairs =
Step 4 → Name of the structure = V-shaped or Bend.
(b)
Interpretation:
The Lewis structure of molecules or ions, spatial orientation of electron pairs and the simple geometric structure indicating the approximate bond angles of that molecules or ions should be determined.
Concept Introduction:
Lewis structure represents the valence electron arrangement around the atoms of the molecule. Lewis structure can be drawn for ionic or covalent bonds.
When predicting the geometric structure, VSPER theory is used. The three-dimensional structure of atoms in.
Answer to Problem 46CR
Explanation of Solution
For PH3 Part A Step 1 →
Sum
Step 2 → Pair of electrons =
Electron pairs for bonds =
Step 3 → Remain electron pairs =
Part B Step 1 → Lewis structure
Step 2 →
Step 3 → But around the
No: of non- bonding pairs = 1
Step 4 → Name of the structure = Trigonal pyramid.
(c)
Interpretation:
The Lewis structure of molecules or ions, spatial orientation of electron pairs and the simple geometric structure indicating the approximate bond angles of that molecules or ions should be determined.
Concept Introduction:
Lewis structure represents the valence electron arrangement around the atoms of the molecule. Lewis structure can be drawn for ionic or covalent bonds.
When predicting the geometric structure, VSPER theory is used. The three-dimensional structure of atoms in.
Answer to Problem 46CR
Explanation of Solution
CBr4 Part A. Step 1 →
Sum = 32
Step 2 → Pair of electrons =
Electron pairs for bonds =
Step 3 → Remain electron pairs =
Part B Step 1 → Lewis structure
Step 2 →
Step 3 → But around the
No: of non- bonding pairs =
Step 4 → Name of the structure = Tetrahedral.
(d)
Interpretation:
The Lewis structure of molecules or ions, spatial orientation of electron pairs and the simple geometric structure indicating the approximate bond angles of that molecules or ions should be determined.
Concept Introduction:
Lewis structure represents the valence electron arrangement around the atoms of the molecule. Lewis structure can be drawn for ionic or covalent bonds.
When predicting the geometric structure, VSPER theory is used. The three-dimensional structure of atoms in.
Answer to Problem 46CR
Explanation of Solution
For ClO4 -
Part A. Step 1 →
Sum =
Step 2 → Pair of electrons =
Electron pairs for bonds =
Step 3 → Remain electron pairs =
Part B Step 1 → Lewis structure
Step 2 →
Step 3 → But around the
No: of non- bonding pairs =
Step 4 → Name of the structure = Tetrahedral
But considering resonance, the exact position of three p bonds cannot be determined exactly. It provides a p cloud over the molecule. So that a resonance hybrid determines the exact structure of ClO4 - molecule.
(e)
Interpretation:
The Lewis structure of molecules or ions, spatial orientation of electron pairs and the simple geometric structure indicating the approximate bond angles of that molecules or ions should be determined.
Concept Introduction:
Lewis structure represents the valence electron arrangement around the atoms of the molecule. Lewis structure can be drawn for ionic or covalent bonds.
When predicting the geometric structure, VSPER theory is used. The three-dimensional structure of atoms in.
Answer to Problem 46CR
Explanation of Solution
BF3
Part A. Step 1 →
Sum =
Step 2 → Pair of electrons =
Electron pairs for bonds =
Step 3 → Remain electron pairs =
Part B Step 1 → Lewis structure
Step 2 →
Step 3 → Also around the
No: of bonding pairs =
No: of non- bonding pairs =
Step 4 → Name of the structure = Trigonal planar.
(f)
Interpretation:
The Lewis structure of molecules or ions, spatial orientation of electron pairs and the simple geometric structure indicating the approximate bond angles of that molecules or ions should be determined.
Concept Introduction:
Lewis structure represents the valence electron arrangement around the atoms of the molecule. Lewis structure can be drawn for ionic or covalent bonds.
When predicting the geometric structure, VSPER theory is used. The three-dimensional structure of atoms in.
Answer to Problem 46CR
Explanation of Solution
BeF2
Part A. Step 1 →
Sum =
Step 2 → Pair of electrons =
Electron pairs for bonds =
Step 3 → Remain electron pairs =
Part B Step 1 → Lewis structure
Step 2 →
Step 3 → Also around the
No: of non- bonding pairs =
Step 4 → Name of the structure = Linear
.
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Chapter 12 Solutions
Introductory Chemistry: A Foundation
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