Question

What is the molecularity of acidic hydrolysis of Ester?

Answer 1

Answer:

The acid hydrolysis of ester is a first-order reaction, bimolecular reaction and pseudo unimolecular reaction.

When an ester (such as ethyl acetate) is mixed with water it is converted into alcohol and acid according to the following equation:

CH

3

COOC

2

H

5

+H

2

O→CH

3

COOH+C

2

H

5

OH

When the amount of water is relatively large, the reaction goes practically to completion (the equilibrium shifts to the right) and the rate is first order with respect to the ester. The hydrolysis takes place slowly with pure water and is catalyzed by acids.

Answer 2

$\huge\red{\underline{{\bf A}}}$$\huge\pink{\underline{{\bf N}}}$$\huge\green{\underline{{\bf S}}}$$\huge\purple{\underline{{\bf W}}}$$\huge\orange{\underline{{\bf E}}}$$\huge\blue{\underline{{\bf R}}}$

ᴛʜᴇ ᴀᴄɪᴅ ʜʏᴅʀᴏʟʏsɪs ᴏғ ᴇsᴛᴇʀ ɪs ᴀ ғɪʀsᴛ-ᴏʀᴅᴇʀ ʀᴇᴀᴄᴛɪᴏɴ, ʙɪᴍᴏʟᴇᴄᴜʟᴀʀ ʀᴇᴀᴄᴛɪᴏɴ ᴀɴᴅ ᴘsᴇᴜᴅᴏ ᴜɴɪᴍᴏʟᴇᴄᴜʟᴀʀ ʀᴇᴀᴄᴛɪᴏɴ.

ᴡʜᴇɴ ᴀɴ ᴇsᴛᴇʀ (sᴜᴄʜ ᴀs ᴇᴛʜʏʟ ᴀᴄᴇᴛᴀᴛᴇ) ɪs ᴍɪxᴇᴅ ᴡɪᴛʜ ᴡᴀᴛᴇʀ ɪᴛ ɪs ᴄᴏɴᴠᴇʀᴛᴇᴅ ɪɴᴛᴏ ᴀʟᴄᴏʜᴏʟ ᴀɴᴅ ᴀᴄɪᴅ ᴀᴄᴄᴏʀᴅɪɴɢ ᴛᴏ ᴛʜᴇ ᴀʙᴏᴠᴇ ᴇϙᴜᴀᴛɪᴏɴ:

ᴡʜᴇɴ ᴛʜᴇ ᴀᴍᴏᴜɴᴛ ᴏғ ᴡᴀᴛᴇʀ ɪs ʀᴇʟᴀᴛɪᴠᴇʟʏ ʟᴀʀɢᴇ, ᴛʜᴇ ʀᴇᴀᴄᴛɪᴏɴ ɢᴏᴇs ᴘʀᴀᴄᴛɪᴄᴀʟʟʏ ᴛᴏ ᴄᴏᴍᴘʟᴇᴛɪᴏɴ (ᴛʜᴇ ᴇϙᴜɪʟɪʙʀɪᴜᴍ sʜɪғᴛs ᴛᴏ ᴛʜᴇ ʀɪɢʜᴛ) ᴀɴᴅ ᴛʜᴇ ʀᴀᴛᴇ ɪs ғɪʀsᴛ ᴏʀᴅᴇʀ ᴡɪᴛʜ ʀᴇsᴘᴇᴄᴛ ᴛᴏ ᴛʜᴇ ᴇsᴛᴇʀ. ᴛʜᴇ ʜʏᴅʀᴏʟʏsɪs ᴛᴀᴋᴇs ᴘʟᴀᴄᴇ sʟᴏᴡʟʏ ᴡɪᴛʜ ᴘᴜʀᴇ ᴡᴀᴛᴇʀ ᴀɴᴅ ɪs ᴄᴀᴛᴀʟʏᴢᴇᴅ ʙʏ ᴀᴄɪᴅs.

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