Gas Laws

Question 1

Convert 29.82 inches of mercury (in. Hg) to atmospheres (atm).

1 atm = 29.9213 in. Hg

Answer 1

0.9966 atm

Question 2

At a room temperature of 22.8 °C, a balloon is filled with 1.37 L of helium from a tank. A child hides the balloon in the refrigerator for quite a while, at 4.6 °C. Assuming no loss of helium, what is the volume of gas in the cold balloon?

Answer 2

1.29 L

Question 3

How many gas molecules are in a 500.0 L chamber at a pressure of 18.2 atm and temperature of 106.4 °C?

Answer 3

292 mol

Question 4

When 6.58 L of hot neon gas in a sign cool to 18.27 °C after turning off the sign, the gas occupies 6.03 L of space. What was the temperature of the hot gas, in degrees Celsius?

Answer 4

45°C

Question 5

What was the original volume of a gas at 755 torr that now has a pressure of 738 torr and occupies 11.4 L?

Answer 5

11.1 L