Assuming the temperature and pressure are held constant, which of the gas samples has the greatest number of gas particles?
45.0 mL O3
35.0 mL N2
15.0 mL of CO2
25.0 mL of SO3
To determine which of the gas samples has the greatest number of gas particles, we need to use the ideal gas law equation:
PV = nRT
where:
P = pressure (constant)
V = volume
n = number of moles (number of gas particles)
R = ideal gas constant
T = temperature (constant)
Since the temperature and pressure are held constant, we can simplify the equation to:
V/n = constant
This means that the ratio of volume to the number of moles is constant. Therefore, to compare the number of particles in each sample, we can compare the volume of each sample.
Given the volumes of the gas samples:
45.0 mL O3
35.0 mL N2
15.0 mL CO2
25.0 mL SO3
We can see that the sample with the greatest volume is 45.0 mL O3. Therefore, the gas sample with 45.0 mL of O3 has the greatest number of gas particles.
Convert each to moles.l mol = grams/molar mass or mol = M x L or use PV = nRT and solve for n.
A mole of each will contain the same number of molecules.