A. Calculate the volume, in dm3, occupied by 26.4 g of carbon

a. Calculate the volume, in dm3, occupied by 26.4 g of carbon dioxide at r.t.p.
(Ar values: C = 12.0, O = 16.0)

b. A flask of volume 120 cm3 is filled with helium gas at r.t.p. Calculate the mass of helium present in the flask.
(Ar value: He = 4.0)