chemistry
posted by Anonymous .
Assuming the temperature and pressure are held constant, which of the gas samples has the greatest number of gas particles?
a. 45.0 mL O3
b. 35.0 mL N2
c. 15.0 mL of CO2
d. 25.0 mL of SO with the little 3 at the bottom.

PV = nRT
P is constant
R is constant
T is constant.
So V = kn
That means the largest V will have the largest n