PART 3: COMPARING MODEL VS. REAL MOLECULES Explore the Real Molecules screen. C. List the molecules that show a difference in bond angle between "Real" and "Model". Note: differences in bond angle may be small. Molecule H₂0 Soa CIE3 NH3 SE4 Number of Lone Pair Domains 2 1 x d. What do all of the molecules in the table have in common? They all 1 2 e. What trend do you observe that distinguishes lone pairs from bonding domains? Lone pairs are more repulsive. sive. 1 Use the simulation to build a system with 5 domains. This is called a trigonal bipyramidal structure. The two different sites in a trigonal bipyramid are labeled as A and B in the drawing to the right. f. Each A atom is adjacent to 3 B atoms. What is the A-C-B bond angle? 90° g. Each B atom is adjacent to 2 A atoms and 2 B atoms. What is the B-C-B bond angle. G F 1 n B A 90° will C ****** A h. In a system with 4 atoms and 1 lone pair, predict whether the lone pair will be in a B site or an A site? Explain. 116 The lone pair will be in a B site because for 5 election B Pairs the lone pair has to be in an equatorial position. B i. Examine the molecule SF4 in the Real Molecules screen to check your prediction from question c. Which interactions are more important in determining where the lone pair will go? more important in Electrostatic repulsions are determining where lone pairs go. B YI 003
PART 3: COMPARING MODEL VS. REAL MOLECULES Explore the Real Molecules screen. C. List the molecules that show a difference in bond angle between "Real" and "Model". Note: differences in bond angle may be small. Molecule H₂0 Soa CIE3 NH3 SE4 Number of Lone Pair Domains 2 1 x d. What do all of the molecules in the table have in common? They all 1 2 e. What trend do you observe that distinguishes lone pairs from bonding domains? Lone pairs are more repulsive. sive. 1 Use the simulation to build a system with 5 domains. This is called a trigonal bipyramidal structure. The two different sites in a trigonal bipyramid are labeled as A and B in the drawing to the right. f. Each A atom is adjacent to 3 B atoms. What is the A-C-B bond angle? 90° g. Each B atom is adjacent to 2 A atoms and 2 B atoms. What is the B-C-B bond angle. G F 1 n B A 90° will C ****** A h. In a system with 4 atoms and 1 lone pair, predict whether the lone pair will be in a B site or an A site? Explain. 116 The lone pair will be in a B site because for 5 election B Pairs the lone pair has to be in an equatorial position. B i. Examine the molecule SF4 in the Real Molecules screen to check your prediction from question c. Which interactions are more important in determining where the lone pair will go? more important in Electrostatic repulsions are determining where lone pairs go. B YI 003
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Valence Bond Theory Vbt
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Question
what is the answer to d and g?
Transcribed Image Text:A
Oc
134
PART 3: COMPARING MODEL VS. REAL MOLECULES
Explore the Real Molecules screen.
C.
List the molecules that show a difference in bond angle between "Real" and "Model". Note:
differences in bond angle may be small.
Molecule
H₂0
SO₂
CIF3
NH3
St
e.
Number of Lone Pair Domains
I
X d. What do all of the molecules in the table have in common?
They all
2
What trend do you observe that distinguishes lone pairs from bonding domains?
Lone pairs are more repulsive.
Use the simulation to build a system with 5 domains. This is called a
trigonal bipyramidal structure. The two different sites in a trigonal
bipyramid are labeled as A and B in the drawing to the right.
f. Each A atom is adjacent to 3 B atoms. What is the A-C-B bond
angle?
90
g. Each B atom is adjacent to 2 A atoms and 2 B atoms. What is
the B-C-B bond angle.
f
B
90⁰
C ... B
A
B
h. In a system with 4 atoms and 1 lone pair, predict whether the lone pair will be in a B site or an A
B site? Explain.
The lone pair will be in a
B site
because for 5 electron
Pairs the lone pair has to be in an equatorial position.
B
YI
003
i.
Examine the molecule SF4 in the Real Molecules screen to check your prediction from question
c. Which interactions are more important in determining where the lone pair will go?
Electrostatic repulsions are more
important in
determining where lone
pairs
will go.
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