This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: You have prepared an organic compound by reacting it with strong aqueous acid. The workup procedure ... (Read 97 times)

vicky

  • Hero Member
  • *****
  • Posts: 586
on: Aug 23, 2018

You have prepared an organic compound by reacting it with strong aqueous acid. The workup
  procedure calls for extraction of the compound into methylene chloride, then an extraction of
  the methylene chloride solution with 5 NaHCO3.
  (a) What is the purpose of the extraction with 5 NaHCO3?
  (b) What precautions should you take when you add the 5 NaHCO3 to the organic solution?



Question 2

A reaction workup for an aqueous reaction mixture calls for extraction with diethyl ether and
  then an extraction with saturated aqueous sodium chloride. What is the purpose of the saturated sodium chloride step?



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jliusyl

  • Sr. Member
  • ****
  • Posts: 328
Reply #1 on: Aug 23, 2018
Answer to Question 1

(a) The sodium bicarbonate serves to neutralize any residual acid.
(b) Carbon dioxide gas (CO2) will evolve when the solutions are mixed and build up pressure
in the separatory funnel. Be sure to vent frequently with the separatory funnel pointing
away from people.



Answer to Question 2

The saturated sodium chloride serves to pull water from the ether layer, thus drying it. It
also encourages all organic-soluble compounds to go to the organic layer.



vicky

  • Member
  • Posts: 586
Reply 2 on: Aug 23, 2018
Great answer, keep it coming :)

TheNamesImani

  • Member
  • Posts: 334
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

Did you know?

In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Cystostomy. An artificial opening is made through the urinary bladder wall during this procedure. As Cystostomy. An artificial opening is made through the urinary bladder wall during this procedure. As
Organic molecules Organic molecules
Organic Fertilizer Organic Fertilizer
Correction of acid and base imbalance Correction of acid and base imbalance
Four common staining procedures used in chromosomal analysis. Most karyotypes are prepared using G-b Four common staining procedures used in chromosomal analysis. Most karyotypes are prepared using G-b
A variety of organic compounds from food can enter the reactions of aerobic respiration. A variety of organic compounds from food can enter the reactions of aerobic respiration.
Video: Glycolysis - and oxygen

For a complete list of videos, visit our video library