This topic contains a solution. Click here to go to the answer

Author Question: Which of the following compounds could be subjected to sublimation at atmospheric pres sure? (a) ... (Read 40 times)

kamilo84

  • Sr. Member
  • ****
  • Posts: 495

Which of the following compounds could be subjected to sublimation at atmospheric pres
  sure?
  (a) Compound A: vapor pressure at its melting point = 770 mm Hg
  (b) Compound B: vapor pressure at its melting point = 400 mm Hg
  (c) Compound C: vapor pressure at its melting point = 10 mm Hg



Question 2

Limonene (MW 136) is a pleasant-smelling liquid found in lemon and orange peels. The bp of
  limonene is 175, but it co-distills with water at 97.5. If the vapor pressure of water at 97.5 is
  690 mm Hg, what percentage of the steam-distillate is limonene?




Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

livaneabi

  • Sr. Member
  • ****
  • Posts: 328
Answer to Question 1

Compounds A and B will have significant vapor pressure at their melting point.

Answer to Question 2

wtwater/wtlimonene = (690 x 18)/(70 x 136) = 1.3
Thus, for each 1.3 g of water, 1 g of limonene distills. Therefore, 1/2.3 g = 43 of the steam-dis
tillate is limonene.





kamilo84

  • Member
  • Posts: 495
Reply 2 on: Aug 23, 2018
Great answer, keep it coming :)


lindahyatt42

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Gracias!

 

Did you know?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Did you know?

Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

For a complete list of videos, visit our video library