Question

The density in grams per liter of ethylene (`C_2H_4`) at STP is?

Answer 1

`"1.252 g/L"`

Explanation:

`"1 mol"` of any gas at `"STP"` occupies `"22.4 L"`

Mass of `"1 mol"` of ethylene `"= 28.05 g"`

`"Density" = "Mass"/"Volume" = "28.05 g"/"22.4 L" = "1.252 g/L"`