Question

Calculate the density of chlorine gas in g/l, at stp.

a. 0.32 g/l

b. 0.63 g/l

c. 1.6 g/l

d. 2.9 g/l

e. 3.2 g/l

Answer 1

The Answer would be e: 3.2 g/L

At STP : p = 1 atm and T = 273.15 K
molar mass Cl2 = 70.906 g/mol

d = molar mass x p/RT = 70.906 x 1 atm / 0.08206 x 273.15=3.16 g/L