Question

1. Dr. Al Dehyde is a very unorganized scientist. He has measured out a number of...

1. Dr. Al Dehyde is a very unorganized scientist. He has measured out a number of solvents and reagents he needs to carry out his work for the day and forgot to label them. Please suggest a solubility test to help him figure out what is on his bench!

(a) Al has a 125ml Erlenmeyer flask of benzaldehyde and a Erlenmeyer of benzene, What test can you use to determine their identities?

(b) Al has a beaker of acetone and a beaker of ethanoic acid. What test can you use to determine their identities?

(c) Al has a jar of benzoic acid and a jar of N-phenylbenzamide. What test can you use to determine their identities?

(d) Al has a graduated cylinder of 1-butanol and a graduated cylinder of 1-decanol. What test can you use to determine their identities?

The options are;

water solubility test

dissolve in water and test pH

hexane solubility test

sulfuric acid test

sodium hydroxide solubility test

sodium bicarbonate solubility test

hydrochloric acid solubility test

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Homework Answers

Answer #1

Answer 1

The mixture of benzaldehyde and benzene can be departed by using concentrated sulfuric acid.

Benzaldehyde will be soluble but benzene will not.

Answer 2

Out of acetone and ethanoic acid, dissolve in water and test.

Ethanoic acid will show pH less than 7

Answer 3

Out of benzoic acid and N-phenylbenzaminde, separation can be done by using water and test pH.

Benzoic acid with have pH below 7.

D) Out of butanol and octanol, butanol is water soluble while octanol is insoluble.

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