Which gas has the highest the density at STP?

a. 35.8 g of nitrogen

b. 1.5 g of argon

c. 92.2 g of butane

d. No right answer.

The answer to your question is: letter c

Explanation:

Density = mass / volume

If we consider that the volume is the same in the three samples (1 ml), then:

a) Density = 35.8 / 1 = 35.8 g / ml

b) Density = 1.5 g / 1 = 1.5 g / ml

c) Density = 92.2 g / 1 = 92.2 g/ml