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Shea Best
Chemistry
17 September, 05:36
Determine the density of CO2 gas at STP.
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Holmes
17 September, 05:38
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The ideal gas law is presented by the equation PV = nRT. n, the number of moles, is equal to mass over molar mass. And density is M/V.
PV = nRT
PV = (M/molar mass) RT
P/RT = (1/molar mass) (M/V)
M/V = D = (molar mass) (P/RT)
Molar mass of CO2 = 44 g/mol
D = (molar mass) (P/RT)
D = (44 g/mol) (1 atm) / (0.08206 L-atm/mol-K) (273K)
D = 1.964 g/L
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