just plug in your formula
PV = nRT
n = PV/RT
n is the number of moles.
Now multiply by A, Avogadro's constant to get the number of molecules.
Or, since R = kA,
n = PV/kAT so
nA = PV/kT
gives the number of molecules
How many air molecules are in a 15.0×12.0×10.0 ft room? Assume atmospheric pressure of 1.00 atm, a room temperature of 20.0 ∘C, and ideal behavior.
Volume conversion:There are 28.2 liters in one cubic foot.
1 answer