Lab Safety
This is the first piece of safety equipment to be worn.
What are goggles?
A gas has an initial volume of 2.9 L at 313 K. What is the volume of the gas at 414 K?
3.8 L
The SI unit for pressure
What is a Pascal?
One mole of any gas will occupy this volume at STP.
What is 22.4 L?
The random motion of particles from areas of higher concentration to areas of lower concentration
What is diffusion?
This is the final step in cleaning up after a lab.
What is washing your hands?
Nitrogen is stored at a temperature of 98.6 K and a pressure of 229 kPa. If the pressure is changed to 505 kPa, what will the final temperature be?
217 K
A device used to measure atmospheric pressure.
What is a barometer?
This intensive property of a gas can be calculated using a modified form of the ideal gas law, when the molecular mass of the gas in question is known.
What is density?
The passage of gas through a pinhole into an evacuated chamber
What is effusion?
This is the difference between being careless and having an accident in the lab.
What is following direction?
A gas has a volume of 45.1 L at 299 K. What is the temperature of this gas at a volume of 45.4 L?
301 K
This variable is inversely proportional to pressure.
What is volume?
In the balanced equation 4NH3 + 5O2 --> 4NO + 6H2O, this many moles of oxygen are needed to produce 3 moles of water vapor.
What is 2.5?
A measure of the average kinetic energy of a group of particles.
What is temperature?
When their lab partner needs to use this piece of safety equipment, students should guide them to it by their shoulders and turn it on for them while the rest of the class leaves the room
What is the emergency shower?
111 L of neon is at a pressure of 94.7 kPa. What is the volume of the neon at standard pressure?
104 L
This pressure is standard, when expressed in atomospheres.
What is 1 atm?
This is the numerical value of R when using kPa as a unit of pressure, liters as a unit of volume, and K as a unit of temperature.
What is 8.314?
Effusion can be used to separate these.
What are isotopes?
In the event of a student using the emergency shower, these two people should be told.
Who are the nurse and main office?
3.4 L of chlorine gas is stored at a pressure of 2.12 atm and a temperature of 87.84 K. If the volume decreases to 2.7 L and the temperature is increased to 97 K, what will the final pressure be?
2.9 atm
If a tire pressure gauge reads 35 psi, the absolute pressure on the air in the tire is this, assuming standard pressure in the ambient atomosphere.
This scientist was the first to discover that the volume of a gas is directly proportional tot he number of moles of that gas that are present in a reaction.
Who is Avogadro?
Unlike liquids, gases have space between their particles, giving them this defining characteristic.
What is compressibility?