Question 1
Gases are sold in large cylinders for laboratory use. What pressure, in atmospheres, will be exerted by 2,500 g of oxygen gas (O
2) when stored at 22°C in a 40.0 L cylinder?
◦ 3.6 atm
◦ 10. atm
◦ 47 atm
◦ 1,500 atm
◦ 7.6 × 10
4 atm
Question 2
How many atoms of Ar gas are present in a 340 mL container at 55 °C and 720 mmHg?
◦ 0.012 Ar atoms
◦ 7.2 x 10
21 Ar atoms
◦ 4.3 x 10
22 Ar atoms
◦ 2.9 x 10
23 Ar atoms
◦ 1.7 x 10
24 Ar atoms