A sample of ammonia gas occupies 2.65 L when measured at 28 degrees celsius and 1.38 atm. What is the density of the ammonia under these conditions?

Question

Please help, I'm not sure which formula to use! Thank you.

Answer 1

I would use this one.
P*molar mass = density*RT
density will be in g/L.

Answer 2

Thank you! Did you get 1.26 g/L

Answer 3

No. The answer is less than 1 g/L.

Answer 4

0.951g/L

Answer 5

I obtained 0.9498 which I would round to 0.950 g/L. I used 17 for the molar mass and 0.08206 for R.