Question

density of a gas at 300k and 210torr is 0.434 gm per lit.what is its molar volume?

a]14.78 gm per mole b]73.43 gm per mole c]38.68 gm per mole d]43.28 gm per mole

Answer 1

Answer:

Density of a gas (d)  = 0.434 g L-1

Temperature (T) = 300 K

Pressure = 210 torr

Value of R (gas constant) = 62.3637 L torr / mol K

M (Molar mass) = d×R×TP

M = 0.434×300×62.3637210 = 38.66 g mol-1