You will have a mixture of three compounds where the two major components (>20%)

Question

You will have a mixture of three compounds where the two major components (>20%) will be a neutral and EITHER an acid or a base. The third minor component (<10%) is another neutral compound. You will be required to find the original mass percent of your mixture (A%, B%, C%) and identify the two major components. The possible compounds are listed below (and yes, you should provide safety and disposal info for all of them in your pre-lab). Additional reagents, solvents, etc. will be supplied as described in the book. If you think one of your unknowns is a base, it is strongly suggested that you isolate/purify that compound during the first week.

Benzoic acid

Benzoin

1,4-dibromobenzene

Fluorene

o-Toluic acid

4-aminoacetophenone

4-chloroaniline

phenanthrene

I have the choice of using these techniques: Solubility, TLC, extraction, distillation,

Crystallization, Filtration

and MP, dehydration of 4-cyclohexanol. Which do I use? I know I can't use distillation for a fact.

Crystallization, Filtration

Explanation / Answer

answer

you can use extraction procedure listed on Blackboard.

This should help! Then test using boiling points, also you should plan to do an IR before drying your unknown. So now you have 2 of 3 steps You could also do a mixed melting point to confirm...   

Related Questions

Navigate

• Browse (All)
• Browse Y
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.