What is the density of carbon dioxide at STP? (C=12.01g/mol; O=16.00g/mol)

1 Answer
Mar 4, 2018

0.00195 g/cm3

Explanation:

The molar mass of CO2 is 12.01 g/mol+216 g/mol=44.01 g/mol

At S.T.P, the molar mass of CO2 occupies 22.4 L=22400 cm3, i.e. 1 mol occupies 22400 cm3

So, the density of CO2 at S.T.P is

=44.01 g22400 cm3=0.00195 g/cm3