Question: a mixture that contains benzoic acid, 4-chloroaniline and naphthalene.
ID: 890907 • Letter: Q
Question
Question:
a mixture that contains benzoic acid, 4-chloroaniline and
naphthalene. The 4-chloroaniline is separated first by extraction with hydrochloric acid.Since no phenolic compound is present in this mixture, two extractions with base solution are not required; thus, the benzoic acid could be separated from the neutral compound by extraction with either aqueous sodium bicarbonate or aqueous sodium hydroxide solution. We have chosen to extract the acidic compound into the aqueous layer using sodium hydroxide.
Write balanced chemical equations for all transferals of the compounds from organic to aqueous phases and for all the precipitation reactions. [Note: If a compound does not move from one layer to another, no reaction has occurred and no equation can be
written.] In the equations that you write, indicate the state, solid (s), liquid (l), gas (g) or aqueous (aq), of each product formed in the reaction. You must write out the entire structural formula for each compound. Do not abbreviate an alkyl or aryl group with the letter “R”.
PLEASE WRITE IN BALANCED CHEMICAL EQUATIONS WITH PHASES BASED ON THE DIAGRAM BELOW!! Thank you!
Explanation / Answer
Solution :-
Naphthalene is the compound which do not changes from the organic layer to aqueous layer therefore no reaction equation for the naphthalene. It remains the organic layer.
Equation for the 4-chloroanelene are as follows
Changing from organic layer to aqueous layer
C6H6ClN(s) + HCl(aq) ------ > C6H6ClNH^+(aq) + Cl^-(aq)
Equation from changing aqueous layer to organic layer
C6H6ClNH^+(aq) + NaOH(aq) ----------- > C6H6ClN(s) + Na^+(aq)
Equations for the benzoic acid
Changing from organic layer to aqueous layer
C7H6O2(s) + NaOH(aq) ------- > C7H5O2Na(aq) + H2O(l)
Equation for change from aqueous layer to organic layer
C7H5O2Na(aq) + HCl(aq) ----- > C7H6O2(s) + NaCl(aq)
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