Chemistry
2k19boy
17

2.15 g of an unknown gas at 71 degrees C and 1.10 atm is stored in a 1.75 L flask. Solve for the density and the molar mass of the gas.

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(1) Answers
Peanut2

For this we use the ideal gas equation for the calculations. It is expressed as: PV = nRT Density = m/V Density = 2.15 g / 1750 mL = 0.00123 g/mL Since, PV = nRT P = nRT/V P = density RT / Molar mass Thus, Molar mass = densityRT / P Molar Mass =(1.23 )(0.08206)(71+273.15) / 1.10 = 31.58 g/mol

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