chemistry

posted by .

What is the effect of the following on the separation of the mixture(hexane and toluene)?
a. A soluble, nonvolatile impurity
b. a decrease in barometric pressure
c. an increase in barometric pressure
d. rapid heating rate

  • chemistry -

    I take we are talking about fractional distillation.

    a. In terms of the separation a small amount of a soluble nonvolatile impurity will have no effect. There will be a small increase in each of the boiling points, which are already well separated.

    b. A decrease in the barometric pressure will bring the boiling points closer together and thus more theoretical plates are needed to achieve separation. Or, if you like with the same apparatus, a poorer separation.

    c. An increase in barometric pressure will increase the separation of the boiling points, so less theoretical plates needed. Or, if you like with the same apparatus, a better separation.

    d. Not quite sure what is meant by this. Is the implication that the vapour is not at equilibrium?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Barometric Pressure

    I have been studying the reduction in barometric pressure and temperature with height and am happy with my findings ref temperature. With regard to pressure I read that for every increase in altitude of 32 feet the pressure drops 1 …
  2. Chemistry

    I have to chane the barometric pressure in my area to ATM. We have to look at the U.S. Weather map that gives the barometric pressure. I live in an area that has shows 1016 for barometric pressure. First is 1016 in millibars or what …
  3. chemistry

    What is the effect of the following on the separation of the mixture?
  4. chemistry

    What is the effect of the following on the separation of the mixture(hexane and toluene)?
  5. chemistry

    What is the effect of the following on the separation of the mixture(hexane and toluene)?
  6. chemistry

    What is the effect of the following on the separation of the mixture(hexane and toluene)?
  7. chemistry

    What is the effect of the following on the separation of the mixture(hexane and toluene)?
  8. chemistry- can you check my answers?

    can you please check my answers?? 9. For the following reaction delta H=2816 kj. 6 CO2(g) + 6 H2O(l) -> C6H12O6(s) + 6O2(g) how is the equilibrium yeild of C6H12O6(s)affected by each of the following?
  9. chemistry

    The barometric pressure recorded by a weather balloon is 0.731 atmoshperes (atm). Express this barometric pressure in millimeters of mercury (mm Hg).
  10. Chemistry

    Could someone please help guide me through this question: A 1.047 g sample of He(g) is found to occupy a volume of 8.446 L when collected over hexane at 25.0 ∘C and 739.6 mmHg barometric pressure. Use these data to determine …

More Similar Questions