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

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Mar 4, 2018

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#"0.00195 g/cm"^3#

Explanation:

The molar mass of #CO_2# is #"12.01 g/mol" + 2*"16 g/mol" = "44.01 g/mol"#

At S.T.P, the molar mass of #CO_2# occupies #"22.4 L" = "22400 cm"^3#, i.e. #"1 mol"# occupies #"22400 cm"^3#

So, the density of #CO_2# at S.T.P is

#= "44.01 g"/("22400 cm"^3) = "0.00195 g/cm"^3#

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