Question

Three pounds of ethane (C2) and 2 Ib of n-Butane (n-C4) are mixed in a sealed container. The temperature and pressure are adjusted to 5 psia and 100°F. Calculate the compositions and weights of the gas and liquid at equilibrium. Assume that the mixture acts like an ideal solution

Answer #1

12-9. Six pound moles of ethane, three lb moles of propane and
one lb mole of n-butane are mixed in a closed container and the
temperature is adjusted to 75°F. What is the bubble-point pressure?
What is the dew-point pressure? Calculate the compositions of the
gas and liquid at equilibrium at 75°F and 300 psia.You may assume
that the mixture behaves like an ideal solution.
Component
Composition
mole fraction (Zj)
Vapor pressure at
75F (Pvj)
Zj*Pvj
Zj/Pvj
C2
0.6...

n this exercise, weighed samples of a solid unknown containing
NaCl and NaHCO3 react with hydrochloric acid. The volume of the CO2
liberated by the reaction in the gas phase is measured with a gas
collection syringe. From the volume we can calculate the number of
moles of CO2 in the gas phase using the ideal gas
approximation.
Since the CO2 is generated in an aqueous environment (aqueous
HCl), some CO2 will dissolve in the liquid phase. The amount of...

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