Molar mass of a gas is the mass of one mole of that gas, measured in grams per mole.
To calculate molar mass of a gas at 100°C and 26.6 kPa, you can use the ideal gas law equation: M = (mRT)/(PV), where M is the molar mass, m is the mass of the gas, R is the gas constant, T is the temperature in Kelvin, P is the pressure, and V is the volume.
The ideal gas law is a mathematical equation that describes the relationships between pressure, volume, temperature, and amount of a gas. It is expressed as PV = nRT, where P is pressure, V is volume, n is the number of moles, R is the gas constant, and T is the temperature in Kelvin.
Calculating molar mass of a gas is important because it helps determine the physical and chemical properties of the gas, such as density, boiling point, and reactivity. It also helps in the conversion of gas measurements from one unit to another.
The molar mass of a gas can be affected by various factors such as temperature, pressure, and the presence of other gases. Changes in these factors can lead to changes in the volume and density of the gas, ultimately affecting its molar mass.