Name:

(c) substance used to change acetic acid to acetic anhydride

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Solution

Phosphorous pentoxide $(P_{2} O_{5})$ is heated along with acetic acid to form acetic anhydride.

Phosphorous pentoxide is a powerful dehydrating agent.

$2 C H_{3} C O O H P_{2} O_{5} - -- \to C H_{3} C O - O - C O C H_{3} + H_{2} O$

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Hydrochloric Acid

Standard XII Chemistry

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Name: (c) substance used to change acetic acid to acetic anhydride

Phosphorous pentoxide (P2O5) is heated along with acetic acid to form acetic anhydride. Phosphorous pentoxide is a powerful dehydrating agent. 2CH3COOHP2O5−−−→CH3CO−O−COCH3+H2O

Name:

(c) substance used to change acetic acid to acetic anhydride

Phosphorous pentoxide $(P_{2} O_{5})$ is heated along with acetic acid to form acetic anhydride.

Phosphorous pentoxide is a powerful dehydrating agent.

$2 C H_{3} C O O H P_{2} O_{5} - -- \to C H_{3} C O - O - C O C H_{3} + H_{2} O$