Directions: For each of the problems, circle the correct answer:
1. What is the simplest formulas of the following compounds?
a. 45.9% K, 16.5% N, 37.6% O
b. 74.0% C, 8.7% H, 17.3% N
c. 24.8% Cr, 50.8% Cl, 20.1% N, 4.2% H
2. A certain organic compound has the simplest formula CHO. Which of the following molecular weights are possible?
a. 15
b. 30
c. 45
d. 60
e. 150
