How do you calculate the density of a gas mixture?

To calculate the density of a gas mixture, you would need to know the individual densities of each gas in the mixture and their respective proportions. The formula for calculating the density of a gas mixture is:

Density of gas mixture (Density of gas 1 x Fraction of gas 1) (Density of gas 2 x Fraction of gas 2) ... (Density of gas n x Fraction of gas n)

Where the fractions of each gas are expressed as a decimal and add up to 1.