Question

of the following gases which has the density of 0.906 g/L at 315K and 1.16atm​

Answer 1

Question:

Of the following gases, which has a density of 0.906g/L at 315K and 1.16 atm

A)Ne

B)Ar

C)Xe

D)He

E)Kr

Answer:

The ideal gas law can be rearranged to give

PM = dRT

P = gas pressure in atm = 1.16

M = molar mass of gas in g/mole = ?

d = gas density in g/L = 0.906

R = gas constant = 0.0821

T = Kelvin T = 315

M = dRT / P = (0.906)(0.0821)(315) / (1.16) = 20.2 g/mole

that's Ne.