Further+Applications+of+the+Ideal-Gas+Equation

__**Further Applications of The Ideal Gas Equation**__

PV = nRT

__Molar Mass__

The molar mass of a gas can be found using the Ideal Gas Equation. In order to do this, we must substitute grams over molar mass for moles (n):

PV = (g/mm)RT

Next, use algebra in order to change the equation so that you can find molar mass:

mm = gRT/PV

Using the equation above, you can find the molar mass of a gas given the mass, temperature, pressure, and volume of the gas.

__Density__

Because density is equal to mass over volume, we are able to use the Ideal Gas Equation to find the density of a gas. To be able to do this, we can substitute density for grams over volume:

mm=gRT/PV=>mm=dRT/P=>d=P*(mm)/RT

Finding molar mass and density are just two of the uses of the Ideal Gas Equation. The equation also has many other uses such as finding volumes of gases involved in chemical reactions. This is why the Ideal Gas Equation is such a fundamental part of chemistry.

Source of Information: __Chemistry: The Central Science__ by Brown, Lemay, and Bursten