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Vapor Pressure, Compressibility Factor and Combustion

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When 8.21L of C4H10(g) (butane) are burned in oxygen, how many liters of O2(g) are consumed? Both gases are held at 324.5 K and 12.23 atm.

Ans: 53.37
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Pure Acetone (CH3COCH3) has a vapor pressure of 324.0 torr at room temp. What's the closest value to the molality of a solution of a nonvolatile solute in acetone with a vapor pressure of 200.0 torr at room temp? (ignore solute dissociation and assume ideal behavior)

Ans: 10.67
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Exactly one mole of gas is observed to exert a pressure of 1.0052 atm at a temp of 280.23K in a 20.345L vessel. What's the closest value to compressibility factor of this gas under these conditions?

Ans: 0.8894.

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The solution determines the vapor pressure, compressibility factor and combustion.

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