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Gas Density

Gas Density. Density (d) Calculations. m. m. V. V. P M. P M. =. =. RT. RT. dRT. P. m is the mass of the gas in g. d =. M is the molar mass of the gas in g/mol. Gas density units are g/L. Let’s see how the units work:. We can ALSO find Molar Mass ( M ) of a Gaseous Substance.

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Gas Density

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  1. Gas Density

  2. Density (d) Calculations m m V V PM PM = = RT RT dRT P m is the mass of the gas in g d = Mis the molar mass of the gas in g/mol Gas density units are g/L Let’s see how the units work: We can ALSO find Molar Mass (M ) of a Gaseous Substance M =

  3. Density (d) Calculations dRT P MEMORIZE Remembering the equation Gas density units are g/L PM = dRT M = Into this arrangement Convert this arrangement Then think of it this way: When you are Post Mortem Your are covered with diRT PM = dRT

  4. Density Gas Problem #1 (Finding Molar Mass) d = = m M = V 4.65 g 2.10 L g 2.21 L x 0.0821 x 300.15 K 54.6 g/mol M = 1 atm g = 2.21 L dRT L•atm mol•K P A 2.10-L vessel contains 4.65 g of a gas at 1.00 atm and 27.0 0C. What is the molar mass of the gas? M =

  5. Density Gas Problem #2 (Finding Gas Density) d = m V 3.00 atm x 20.1797 d = 0.0821 x 310.15 K PM 2.38 g/L d = = RT L•atm g mol•K mol A container holds neon gas at 3.00 atm pressure at a temperature of 37.0°C. What is the density of the gas?

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