Question

the density of gas was found to be 3.43g/l at 27°c and 1atm . calculate the molecular mass of the gas​

Answer 1

d = 3.43 g/L^3

T = 300K

P = 1 atm

M = dRT / P

= (3.43 g/L^3 * 0.0821 L.atm/(mol K) * 300 K) / (1 atm)

= 84.48 g/mol

Molar mass of gas = 84.48 g/mol