G a sealed container holds 0.020 moles of nitrogen (n2) gas, at a pressure of 1.5 atmospheres and a temperature of 290 k. the atomic mass of nitrogen is 14.0 g/mol. the boltzmann constant is 1.38 * 10-23 j/k and the ideal gas constant is r = 8.314 j / mol · k = 0.0821 l · atm/mol · k. the mass density of the gas is closest to

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Gizmo

Chemistry

9 February, 16:44

G a sealed container holds 0.020 moles of nitrogen (n2) gas, at a pressure of 1.5 atmospheres and a temperature of 290 k. the atomic mass of nitrogen is 14.0 g/mol. the boltzmann constant is 1.38 * 10-23 j/k and the ideal gas constant is r = 8.314 j / mol · k = 0.0821 l · atm/mol · k. the mass density of the gas is closest to

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Capone · Answer 1

Density is a value for mass, such as kg, divided by a value for volume, such as m3. Density is a physical property of a substance that represents the mass of that substance per unit volume. For gases we use the ideal gas equation to solve for density. We do as follows: PV = nRT PV = mRT / MM Density = m/V = PMM / RT From the given conditions of the nitrogen gas, we substitute the given values as follows: Density = PMM / RT Density = 1.5 atm (28.02 g / mol) / (0.08205 L-atm / mol-K) (290 K) Density = 1.77 g/L Therefore, the density of the gas is 1.77 g per liter.