Owlv2 With Labskills 24-months Printed Access Card For Gilbert/martin's Experimental Organic Chemistry: A Miniscale & Microscale Approach, 6th
6th Edition
ISBN: 9781305387645
Author: Gilbert, John C.; Martin, Stephen F.
Publisher: Cengage Learning
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Question
Chapter 3.2, Problem 29E
Interpretation Introduction
Interpretation:Solvent that is used to rinse filter cake in filtration step of recrystallization should be determined. Also, whether solvents need to be cooled prior to use or not should be determined.
Concept introduction:Recrystallization is technique that is used for purification of organic compounds. This process includes dissolution of solid in specific solvent at high temperature and then crystals are made again by process of cooling. Temperature of crystals is decreased to allow impurities to remain in solution only.
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1.What is the purpose of washing the recrystallized solid with solvent during the vacuum filtration step? Why should the solvent be cold?
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Chapter 3 Solutions
Owlv2 With Labskills 24-months Printed Access Card For Gilbert/martin's Experimental Organic Chemistry: A Miniscale & Microscale Approach, 6th
Ch. 3.2 - Prob. 1ECh. 3.2 - Prob. 2ECh. 3.2 - Prob. 3ECh. 3.2 - Prob. 4ECh. 3.2 - Prob. 5ECh. 3.2 - Prob. 6ECh. 3.2 - Prob. 7ECh. 3.2 - Prob. 8ECh. 3.2 - Prob. 9ECh. 3.2 - Prob. 10E
Ch. 3.2 - Prob. 11ECh. 3.2 - Prob. 12ECh. 3.2 - Prob. 13ECh. 3.2 - Prob. 14ECh. 3.2 - Prob. 15ECh. 3.2 - Prob. 16ECh. 3.2 - Prob. 17ECh. 3.2 - Prob. 18ECh. 3.2 - Prob. 19ECh. 3.2 - Prob. 20ECh. 3.2 - Prob. 21ECh. 3.2 - Prob. 22ECh. 3.2 - Prob. 23ECh. 3.2 - Prob. 24ECh. 3.2 - Prob. 25ECh. 3.2 - Prob. 26ECh. 3.2 - Prob. 27ECh. 3.2 - Prob. 28ECh. 3.2 - Prob. 29ECh. 3.2 - Prob. 30ECh. 3.2 - Prob. 31ECh. 3.2 - Prob. 32ECh. 3.2 - Prob. 34ECh. 3.3 - Prob. 1ECh. 3.3 - Prob. 2ECh. 3.3 - Prob. 3ECh. 3.3 - Prob. 4ECh. 3.3 - Prob. 5ECh. 3.3 - Prob. 6ECh. 3.3 - Prob. 7ECh. 3.3 - Prob. 8ECh. 3.3 - Prob. 10ECh. 3.3 - Prob. 11ECh. 3.3 - Prob. 12ECh. 3.3 - Prob. 13ECh. 3.3 - Prob. 14ECh. 3.3 - Prob. 15ECh. 3.3 - Prob. 16ECh. 3.3 - Prob. 17ECh. 3.3 - Prob. 18ECh. 3.3 - Prob. 19ECh. 3.3 - Prob. 21ECh. 3.3 - Prob. 22ECh. 3.3 - Prob. 23ECh. 3.3 - Prob. 24ECh. 3.3 - Prob. 25ECh. 3.3 - Prob. 26E
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Similar questions
- What would likely happen if a hot saturated solution were filtered by vacuum filtration using a Hirsch funnel? (Hint: The mixture will cool as it comes in contact with the Hirsch funnel.)arrow_forwardWhy is the final product from recrystallization isolated by vacuum filtration and not by gravity filtration?arrow_forwardAt what step in the recrystallization process would a colored impurity be removed?arrow_forward
- Diethyl ether and methylene chloride are generally not suitable for use in recrystallization, but are frequently used as extraction solvents. Explainarrow_forwardIs recrystallization a good method for purifying any product?arrow_forwardWhat are the criteria for a good recrystallization solvent?arrow_forward
- Occasionally you will have solid impurities “trash” in your heated recrystallization solvent. How do you remove these impurities?arrow_forwardWhen isolating the solid after recrystallization using vacuum filtration what solvent should you use to aid in the rinse from the Erlenmeyer flask to the vacuum filter funnel? (Only pick one answer) Group of answer choices: Cold ethyl acetate Cold ethanol Hot ethyl acetate Hot ethanol Hot water Cold water None of the above, it should not be risnedarrow_forwardHow are solvents chosen for recrystallization? (single solvent or mixed-solvent system).What are the properties of a good solvent system? How are crystals collected?arrow_forward
- Why is it important to cool slowly during recrystallizationarrow_forward1. a) While recrystallizing, what should you do if you have solid particles that don’t dissolve even after adding a lot more hot solvent than called for in the procedure? b) What should you do if your crystals don’t come out of solution even after cooling on ice, adding a seed crystal, and scratching for quite a while?arrow_forwardIn liquid, extraction, why is it necessary to turn the separatory funnel upside down and to open the stopcock?arrow_forward
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