Question

In order for oxygen gas, nitrogen gas, and carbon dioxide to have the same volume, they must have the same ______. (Check all answers that are true. There may be one or more than one.) Question 1 options:
1.temperature 2.pressure 3. mass 4.number of molecules 5. formula

Answer 1

The volume of a gas can be found by using ideal gas formula. The formula would be:

V= nRT/P
where
n= number of the molecule (mol)
R= constant
T= temperature
P= pressure

Then, the answer would be 
1. temperature
2. pressure
3. mass
4. number of molecules