The document provides skeletal structures and names for four molecules - paracetamol, fluoxetine, caffeine, and four amino acids - phenylalanine, asparagine, aspartic acid, and proline. It also asks the reader to write chemical formulas and Lewis dot structures for carbon and fluorine, carbon and sulfur, and nitrogen and hydrogen. Finally, it includes a scale conversion problem asking to convert between nanometers, micrometers, and angstroms.

1. Skeletal Structures
From this skeletal structure draw the explicit molecular structures
Paracetamol, the active ingredient in Tylenol.
Fluoxetine, aka Prozac.
Caffeine

2. Write the following amino acids as skeletal structures.
O NH2
C
CH2 CH2
H 3N + C C O– H 3N + C C O–
H O H O
Phenylalanine Asparagine
(Phe) (Asn)
O O– CH2 CH2
C CH2 CH C O–
CH2 NH2+ O
H 3N + C C O– Proline
(Pro)
H O
Aspartic
acid (Asp)

3. Simple Molecules
What molecules can be formed with the elements given?
Give the chemical formula and Lewis Dot Structure.
carbon and fluorine
carbon and sulfur
nitrogen and hydrogen
Scale
50nm = ____µm 3.4Å = ____nm
2.3mm = ____µm 0.6µm = ____nm
0.71nm = ____Å 0.03µm = ____nm