Question 1
Air contains 78% N
2, 21% O
2, and 1% Ar, by volume. What is the density of air at 1,000. torr and –10°C?
◦ 0.56 g/L
◦ 1.0 g/L
◦ 1.3 g/L
◦ 1.8 g/L
◦ 6.1 g/L
Question 2
At constant temperature and volume, a sample of oxygen gas is added to a sample of nitrogen gas. The pressure of the mixture is found by adding the pressures of the two individual gases. This is an example of:
◦ Boyle's Law
◦ Charles's Law
◦ Gay-Lussac's Law
◦ Avogadro's Law
◦ Dalton's Law