Lab Assignment

Procedure:

Draw the Lewis Structure and Model (with your molecular kit) the following molecules and answer the questions accompanying each molecule. Use Figures 10.3 to 10.8 and 11.1 to 11.8 as an aid.

Written Assignment:

1. SiF₄

a. How many VE are there?

b. What is the electron geometry?

c. What is the molecular geometry?

d. What are the hybridized orbitals?

e. Is the molecule polar or non-polar?

2. IF₂⁻ [Use only single bonds to fluorines.]

a. How many VE are there?

b. What is the electron geometry?

c. What is the molecular geometry?

d. What are the hybridized orbitals?

e. Is the molecule polar or non-polar?

3. CO₃2- (no O-O bonds) [Count the charge in the molecule correctly. C almost always forms 4 bonds! And, note that the charge of the ion is not relevant to the polarity of the molecule.]

a. How many VE are there?

b. What is the electron geometry?

c. What is the molecular geometry?

d. What are the hybridized orbitals?

e. Is the molecule polar or non-polar?

4. NF₃

a. How many VE are there?

b. What is the electron geometry?

c. What is the molecular geometry?

d. What are the hybridized orbitals?

e. Is the molecule polar or non-polar?

5. NOCl₂

a. How many VE are there?

b. What is the electron geometry?

c. What is the molecular geometry?

d. What are the hybridized orbitals?

e. Is the molecule polar or non-polar?

6. H₂O

a. How many VE are there?

b. What is the electron geometry?

c. What is the molecular geometry?

d. What are the hybridized orbitals?

e. Is the molecule polar or non-polar?

7. IF₃

a. How many VE are there?

b. What is the electron geometry?

c. What is the molecular geometry?

d. What are the hybridized orbitals?

e. Is the molecule polar or non-polar?

8. IF₅

a. How many VE are there?

b. What is the electron geometry?

c. What is the molecular geometry?

d. What are the hybridized orbitals?

e. Is the molecule polar or non-polar?

9. ICl₄⁻

a. How many VE are there?

b. What is the electron geometry?

c. What is the molecular geometry?

d. What are the hybridized orbitals?

e. Is the molecule polar or non-polar?

10. BHF₂

a. How many VE are there?

b. What is the electron geometry?

c. What is the molecular geometry?

d. What are the hybridized orbitals?

e. Is the molecule polar or non-polar?