Using the table on slide 7, what ORGANIC solvent could you use to do an extraction of something from isooctane? What about from acetic acid? b. On slide 7, it says the solvents in grey would not work to extract an aqueous layer. Why not?  6. a. So if you were trying to extract 15mL of an aqueous layer, why wouldn’t you want to use 45mL of the organic solvent? Why would 20mL be better? b. Why wouldn’t you use 2mL of the organic solvent?

Fundamentals Of Analytical Chemistry
9th Edition
ISBN:9781285640686
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Chapter22: Bulk Electrolysis: Electrogravimetry And Coulometry
Section: Chapter Questions
Problem 22.6QAP
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Using the table on slide 7, what ORGANIC solvent could you use to do an extraction of something from
isooctane? What about from acetic acid?

b. On slide 7, it says the solvents in grey would not work to extract an aqueous layer. Why not? 

6. a. So if you were trying to extract 15mL of an aqueous layer, why wouldn’t you want to use 45mL of the
organic solvent? Why would 20mL be better?

b. Why wouldn’t you use 2mL of the organic solvent?

Solvent polarity index:
Non-polar
0 | Hexane
2.4 Toluene
2.8 Diethyl Ether
3.1 | Dichloromethane
4 Tetrahydrofuran
4.1 Chloroform
4.4 Ethyl Acetate
5.1 Acetone
5.1 Methanol
And while these solvents
5.2 Ethanol
are all nicely polar, they
will NOT work in an
5.8 Acetonitrile
6.2 Acetic Acid
aqueous extraction
6.4 | Dimethylformamide
7.2 Dimethyl Sulfoxide
7
Polar
Water
Transcribed Image Text:Solvent polarity index: Non-polar 0 | Hexane 2.4 Toluene 2.8 Diethyl Ether 3.1 | Dichloromethane 4 Tetrahydrofuran 4.1 Chloroform 4.4 Ethyl Acetate 5.1 Acetone 5.1 Methanol And while these solvents 5.2 Ethanol are all nicely polar, they will NOT work in an 5.8 Acetonitrile 6.2 Acetic Acid aqueous extraction 6.4 | Dimethylformamide 7.2 Dimethyl Sulfoxide 7 Polar Water
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