Answered: The method of extraction for Roman…

The method of extraction for Roman chamomile is: Choose one answer. a. cold-press extraction b. steam distillation c. water distillation d. solvent extraction

EBK A SMALL SCALE APPROACH TO ORGANIC L

4th Edition

ISBN:9781305446021

Author:Lampman

Publisher:Lampman

Chapter84: Fractional Distillation, Azeotropes

Section: Chapter Questions

Problem 9P

See similar textbooks

Related questions

Q: A 300-mL aqueous solution containing a 30.0g of compound A is to be extracted with ether. The…

A: Ether and water are two immiscible liquids. When together, these form two layers with ether on top…

Q: What is the purpose of the wash with water using separatory finnel? Bicarbonate?

A: The aqueous solution of the sodium bicarbonate having formula NaHCO3 and sodium carbonate having…

Q: Give at least three characteristics of chloroform that make it a good extracting solvent for the…

A: In nature alkaloids are found either as acidic salts or free bases.

Q: b) What is the difference between the MGS and EGS? Explain what is the main role of Trichlorsilane…

A: In this question, we have to find out the correct answer of given problem by the help of principles…

Q: Although we will not use a Claisen adapter in our apparatus, what quality of vacuum distillation…

A: Vacuum distillation is a kind of distillation process based on the differences in the boiling points…

Q: Which method would be most appropriate for accomplishing the removale of trace amounts of acetic…

A: Answer

Q: How to increase thw yield of steam distillation?

A: We have to write how to increase the yield of steam distillation.

Q: Which one answer does NOT represent a characteristic of a good recrystalli solvent? 1) Should not…

A: Recrystallization is the process of purification of an impure substance by the use of a suitable…

Q: Based on the readings and lecture on emulsions, and the procedures for this lab answer the following…

A: Given dispersed phase Air Oil Water Egg Dispersed phase =…

Q: 18. For an extraction to be successful, the organic layer should be immiscible or miscible with the…

A: In extraction process, organic and aqueous solutions are thoroughly mixed with solute and is allowed…

Q: 10. Describe how you can decide whether your recrystallized trphenylmethanol is pure or not ?

A: Triphenylmethanol is an organic white crystalline compound. It is insoluble in water and petroleum…

Q: Why ethanol is added to the residue in the distillation flask Why is this important

A: liquid ethanol can be separated from a mixture of ethanol and water by fractional distillation. This…

Q: Some de-icing compositions include dyes or colored compounds called indicators. Why?

A: The process of removing snow or ice from the surfaces is called de-icing. This can be done through…

Q: Which of the ff is not true about recrystallization? a. acetanalide recrystallized only at cold…

A: Recrystallization is done to purify the compounds so as to get the purest form.

Q: When choosing a recrystallization solvent, what properties must be considered? a. Its boiling…

A: The solvent should boil in the range 50–120°C. Impurities should either be insoluble in the hot…

Q: After extraction and prior to evaporation of the organic layer, what experimental step should be…

A: Solvent extraction also referred to as liquid-liquid extraction is a type of extraction where the…

Q: What is the reason for using as little ethanol as possible to dissolve the crude product before…

A: For recrystallization, it is recommended to use minimum solvent to support the goal of recovering…

Q: When we do an organic chemistry experiment, what is the explanation for a melting point below what…

A: A melting point below the literature value for a compound indicates the presence of impurities in…

Q: How can a fractionating column be prepared from a standard distillation column? Select one: Pack…

A: The fractionating column is fitted above the distillation flask containing the mixture of liquids to…

Q: To purify benzil crystals and get rid of any leftover traces of benzoin, what would be the best…

Q: Assume there is confusion as to the nature of a liquid that is being distilled off from 1,4…

Q: After a recrystallization experiment, the crystals were dried very well. The melting point…

A: According to the question, after a recrystallization experiment, the crystals were dried very well.…

Q: Explain how these terms relate to ternay phase diagram Raffinate Solute Carrier Extract

A: Extraction is the process which is used to separate the components from the mixture. It is an…

Q: Illustrate the process - Using a separatory funnel for extraction ?

A: Process of extraction using separatory funnel : a. Spot the separatory channel in an iron ring.…

Q: Many operations in the chemical laboratory use “salting out” in the procedure. What do the purpose…

A: We have find out the purpose of salting out technique in the chemical laboratory.

Q: Cinnamaldehyde is a naturally occurring compound present in cinnamon. Cinnamaldehyde can be…

Q: Using aqueous hydrochloric acid, sodium bicarbonate, or sodium hydroxide solutions, devise a…

Q: Classify these solvents as either protic or aprotic solvents.

A: A protic solvent is a compound containing at least one hydrogen atom bonded to anelectronegative…

Q: Fill in the blanks: The ratio of the solubilities of an extract in two different solvents during…

A: This can be solved by using Nernst distribution law.

Q: surface contamination after cooling the acetanilide in the recrystallization experiment

Q: 2. What two techniques are used to facilitate the aspirin crystallization? 3. Why is it necessary to…

A: Since your question has multiple parts, we will solve first three parts for you. If you want…

Q: recrystallization technique to purify a crude sample of benzoic acid. However, their instructor,…

Q: 5. When the ether is dissolved, add 10 grams of NaCl and shake gently until all the NaCl dissolves.…

A: Principle of Solvent extraction: When an organic compound which can be asolid or liquid, is present…

Q: What is the purpose of including a melting point in a procedure? A) As a method of purification - We…

A: Answer (A) Option is correct.

Q: What is the reason for using as little ethanol as possible to dissolve the crude product (aspirin)…

A: Recrystallization is a process which is used to purify the compounds. The principle behind…

Q: What is the main information you wish to acquire when performing a melting point analysis? A) the…

A: Melting point analysis is always done to check the purity of our compound obtained during the…

Q: What is different about steam distillation

Q: Identify one water-soluble impurity that could be removed by washing the recrystallized dulcin with…

A: Dulcin is an artificial sweetener that is nearly 200 times more sweet than sucrose. Dulcin is…

Q: 1. Basically, when is glass stoppered buret used? ______________________________…

A: Given, 1. Basically, when is glass stoppered buret used? ______________________________…

Q: Write a full procedure to Recrystallize benzoic acid and Naphthalene.

A: Recrystallization is the process of the purification of solid substances. Any substance that needs…

Q: Which of these can be rinsed down the sink? the left over liquid from a distillation of 1-butanol…

A: The process of separation of two compounds on the basis of differences in their boiling point is…

Q: 1. Pure compounds have higher (and sharper) melting points than compounds that contain impurities.…

A: Melting point depends on the intermolecular forces of attraction to a greater extent. Pure crystal…

Q: What process is required to purify the ethanol from the fermented broth? Extraction Distillation…

Q: Select the best solvent (only one) for the recrystallization of each compound (benzoic acid,…

A: Interpretation- To select the best solvent (only one) for the recrystallization of each compound…

Q: When steam distillation is not recommended? What is the theory of steam distillation technique?

A: There are various solutions which contains a lot of solvents which needs to be separated out from…

Q: Write an equation to show how you could recover the parent compounds from their respective salts (1,…

A: Given salts,

Q: A fractional distillation of this mixture is carried out: what is the nature of the recovered…

A: Total mass of sample = 80 g Mass of water = 60 g Mass of nitric acid = 80-60 = 20 g number of moles…

Question

The method of extraction for Roman chamomile is: Choose one answer. a. cold-press extraction b. steam distillation c. water distillation d. solvent extraction

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

………… is usually used only to separate liquids whose boiling points differ greatly or to separate liquids from involatile solids or oils. which option is correct?a. distillation b. simple distillation c. fractional distillationd. steam distillation e. vacuum distillation
Which is not required in recrystallization? a. solution is filtered at high temperature b. moderate volatility solvent c. saturated solution d. solvent must dissolve the impurities
What is brewing tea in water an example of? A. solid-liquid extraction B. liquid-liquid extraction C. none of the above D. recrystallization E. all of the above
In distillation 1. What is the reason for discouraging the formation of bubbles inside the condenser?2. What is a fractionating column?3. How fractional distillation works?4. What are azeotropes?
In a thin layer chromatography (TLC) experiment, solute A traveled 20 mm while solute B traveled 30 mm. The solvent traveled 40 mm. Which has a greater affinity for the silica gel? a. solute B b. A & B have equal affinity c. not enough data d. solute A
which of the following statements regarding purification by recrystallization is false? i. activated charcoal removes insoluble impurities. ii. water is the best recrystallization solvent for organic compounds. iii. slow cooling permits the exclusion of the solvent from the recrystallized solid. a. i, ii, and iii b. i and ii c. i only d. ii and iii
1. What is the use of boiling chips? 2. List at least 3 limitations of using distillation as a method of purification.
what is the role of methanol for extracting chlorophyll? What molecular force holds your chlorophyll and solvent together?
3. When separating hexanes and heptane (both organic liquids), which would be the most suitable means of separation? a. recrystallization b. steam distillation Your answer: c. fractional distillation d. simple distillation
Briefly explain the purpose of each item in the distillation set-up a. Boiling chips – b. DCM – c. Petroleum jelly –
Why should you wash your crystals in ice cold solvent after recrystallization? a. Ice is polar, so will not dissolve your crystals. b. Cold solvent is better at dissolving molecules. c. Ice helps the recrystallization. d. Room temperature solvent will dissolve your crystals, lowering your yield.
Simple and fractional distillation