Practice Quiz 5_B

Practice Quiz 5_B - Practice Quiz 5 Name_ Score_ 1. Which...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Practice Quiz 5 Name_____________________ Score_____ 1. Which would you expect to have a longer retention time, cyclohexane(BP=80ºC) or toluene(BP=138.3 ºC)? Explain. 2. A Chem. 143A student fractionally distilled a 1:1 mixture of n-hexane and n-octane. The student then injected a sample of fraction 1 collected between 50°C and 72°C. The GC printout had two peaks; peak 1 was very large compared to peak 2. What is peak 1? Why is there a second peak? 3. A fractionating column is packed with various materials in order to increase surface area. How does increasing the surface area affect the liquid-vapor equilibrium? 4. The distillation process is based on the combination of which two laws? 5. In the graph provided below with the given parameters, draw a basic simple distillation curve and fractional distillation curve that represents the separation of compound A and B. Label accordingly. 6. Gas chromatogram is a graph of a. concentration vs. time. b. current vs. time. c. mole fraction vs. time. d. relative boiling point vs. time.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 2

Practice Quiz 5_B - Practice Quiz 5 Name_ Score_ 1. Which...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online