Question 1
Combustion analysis of 1.200 g of an unknown compound containing carbon, hydrogen, and oxygen produced 2.086 g of CO
2 and 1.134 g of H
2O. What is the empirical formula of the compound?
◦ C
2H
5O
◦ C
2H
5O
2◦ C
2H
10O
3◦ C
3H
8O
2Question 2
Combustion analysis of a 22.0 mg sample of the painkiller morphine produced 13.2 mg of water. What is the percentage by mass of hydrogen in morphine?
◦ 6.71%
◦ 3.36%
◦ 13.4%
◦ 60.0%