Question

A sample of 4.10 mLmL of diethylether (C2H5OC2H5 ; density=0.7134 g/mL) is introduced into a 5.10 −L vessel that already contains a mixture of N2 and O2, whose partial pressures are PN2= 0.752 atm and PO2= 0.207 atm. The temperature is held at 35.0 ∘C, and the diethylether totally evaporates.

a.Calculate the partial pressure of the diethylether.

b. Calculate the total pressure in the container.

Hints; In problem 10.64 the diethyl ether starts out as a liquid and is then converted to a gas. Use the volume of the diethyl ether liquid and the density of the diethyl ether liquid to help you find the mass of the diethyl ether liquid which is equal to the mass of the dietheyl ether gas. Convert that mass to the number of moles of the diethyl ether gas. The volume of the container is the volume you use in the ideal gas law for part A. Use Dalton's law for part B.

Answer 1