What is the vapor pressure of a solution composed of 3.0 moles benzene (vapor pressure 12.1 kPa) & 1 mole chloroform (vapor pressure 25.2 kPa)

2 answers

vaporpressure*4parts=3parts*12.1kpa+1part*25.2kpa
divide both sides by 4 parts.
Thanks again! I have a bunch more. Your help is really appreciated.