Can you help me with the NH3 step-by-step for number (Step 6)? I need help with the central atom surrounded by an identical electron group. I need help with the molecule polar.
Can you help me with the NH3 step-by-step for number (Step 6)? I need help with the central atom surrounded by an identical electron group. I need help with the molecule polar.
Organic Chemistry: A Guided Inquiry
2nd Edition
ISBN:9780618974122
Author:Andrei Straumanis
Publisher:Andrei Straumanis
Chapter1: Bond Angles And Shape
Section: Chapter Questions
Problem 12CTQ: Consider the following flat drawing of methane (CH4) . a. What is HCH bond angle implied by this...
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Can you help me with the NH3 step-by-step for number (Step 6)?
I need help with the central atom surrounded by an identical electron group.
I need help with the molecule polar.
Transcribed Image Text:I'
H-N-H
I
H
Step 1: Find the Central Atom
Central atom is: N
Look your line bond structure on
page 1.
Molecular Shape of NH3
AB₂E
H-N-
}
✓-H
Step 3: Choose the ABE classification
Circle the correct AB, E, notation.
Recall, we use (A) to represent the
central atom, (B) to represent the
number of atoms bonded to the central
atom, and (E) to represent the number
of lone pairs
AB₁E3 AB₁E₂ AB₁E
AB₂E2 AB2
AB3 AB4
'N
H
AB3E
Step 5: Use the Molecular Shape
table from your notes to draw the
ball and stick representation
lone
pair
(H)
A₁ B₂ E₁ = A B ₂ E
Step 2:
Count number of atoms bonded to the central
atom (B)
# of atoms bonded to central atom = B = 3
1 central atom A
3 Hydrgen B (atorn surrounding
Central a tom
Ilone pair E
Count number of lone pairs on the
central atom (E)
# of lone pairs on central atom = E=
Step 4: Use the Molecular Shape Table from
your notes to select the molecular shape and
bond angles.
•N₂
12
bondisione
Molecular Shape-Trigonal Ryramidal
Bond angles
H
110²
H
(lone pair central
a tom)
-1
Circle one: yes
Step 6: Determine Polarity
Is the central atom surrounded by identical
electron groups?
no
no
4e group around
S-atom in 11
If the answer was yes, then the molecule is
nonpolar. If the answer is no, then the molecule
is polar.
Is the molecule polar?
Circle one: yes
18
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