B. Caffeine has an empirical formula of C4H5N20 and a molar mass of 194 g/mol. What is its molecular formula? (3 points)

In a laboratory, 1.55mg of an organic compound containing carbon, hydrogen, and oxygen is burned for analysis. this combustion resulted in the formation of 1.45mg of carbon dioxide and .89 mg of water. what is the empirical formula for this compound?

Helium decays to form lithium. which equation correctly describes this decay?

4. glenn andrews recently bought a motorcycle for $3,950. if he had to pay 6% sales tax on the bike, what was the total cost of the motorcycle?