posted by Anonymous .
The densities of gases A, B, and C at STP are 1.25g/L, 2.87 g/L, and .714 g/L. Calculate the molar mass of each substance. Indentify each substance as ammonia, sulfur dioxide, chlorine, nitrogen, or methane.
I would do the following.
density (g/L) x 22.4 L/mole = grams/mole which is the molar mass. Then calculate the molar mass of NH3, SO2, Cl2, N2, and CH4 and compare.