+1-315-636-4485
+91 98151-74050 
This set of MCQs helps you brush up on important chemistry topics and prepare you to dive into skill practice.
A student measures the pressure and volume of an empty water bottle to be 1.4 atm and 2.3 L. She then decreases the pressure to 0.65 atm. What is the new volume?
5 L
8.2 L
3.8 L
4 L
What is the pressure of a car tire that had an initial pressure of 1.8 atm but was heated from 38°C to 123°C?
2.1 atm
5.7 atm
2.1 atm
3.6 atm
If a hairspray can is heated, what can be expected of the pressure of the gas inside the can?
The pressure will remain constant
The pressure will decrease
The pressure will increase
The pressure will equalize
In order to convert to Kelvin, you add ______ to the Celsius measurement.
372
732
237
273
Determine the temperature required for 0.0470 mol of gas to fill a balloon to 1.20 L under 998 atm pressure.
0 k
307 k
207 k
107 k
Determine the density of chlorine gas at 22.0C and 1.00 atm of pressure. R = .0821 L*atm/mol*K Chlorine gas has a molar mass of 70.90 g/mol.
0.197 g/mol
1.97 g/mol
2.93 g/mol
29.3 g/mol
The form of the Ideal Gas Law that uses density is M = DRT/P, where D is the given density of a gas. Remember that density is mass/volume. M is the molar mass of the gas in question. What is the molar mass of a pure gas that has a density of 1.40g/L at STP? Remember that STP is standard temperature and pressure, which is 273 K and 1.00 atm. R = .0821 L*atm/mol*K.
15.7 g/mol
31.4 g/mol
3.14 g/mol
16 g/mol
What is the number of moles of gas contained in a 3.0L vessel at 300K with a pressure of 1.50 atm? PV = nRT R = .0821 L*atm/mol*K.
4.25 mol
2.50 mol
4.50 mol
3.75 mol
