None Preparation of Sulfanilamide3.A large excess of ammonia was used in the ammonolysis step.Why?4. Why do you use Na2CO, to precipitate the sulfanilamide ratherthan NaOH, Write equations for what happens in each case.5.What would happen if the sulfanilamide were boiled for anexcessively long time with HCI? Explain with an equation.

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3. A large excess of ammonia was used in the ammonolysis step. Why?

EBK A SMALL SCALE APPROACH TO ORGANIC L

4th Edition

ISBN:9781305446021

Author:Lampman

Publisher:Lampman

Chapter80: Crystallization: Purification Of Solids

Section: Chapter Questions

Problem 3P

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Question

None

Preparation of Sulfanilamide
3.
A large excess of ammonia was used in the ammonolysis step.
Why?
4. Why do you use Na2CO, to precipitate the sulfanilamide rather
than NaOH, Write equations for what happens in each case.
5.
What would happen if the sulfanilamide were boiled for an
excessively long time with HCI? Explain with an equation.

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