Creating an Ester

Year 10 Science

R Groups

R GroupsMeth C1

Eth C2

Prop C3

But C4

Pent C5

Hex C6

Hept C7

Oct C8

Non C9

Dec C10

Word Equation

Word Equation

Alcohol + Carboxylic Acid Ester + Water

Word Equation

Alcohol + Carboxylic Acid Ester + Water

R’-OH + R-C-OH R-C-O-R’ + H2O

OH2SO4

O

Chemical Equation

Word Equation

Ethanol + Ethanoic Acid Ethyl Ethanoate + Water

Example:

Alcohol

Alcohol

Functional Group:

Alcohol

Functional Group:

– OH

Alcohol

Ethanol

Alcohol

Ethanol

Chemical Formula?

Alcohol

Ethanol

ROH

Alcohol

Ethanol

C2H5OH

Alcohol

Ethanol

C2H5OH

Chemical Structure?

Alcohol

Ethanol

RH – O

C2H5OH

Alcohol

Ethanol

C - C

H H

H H

HH – O

C2H5OH

Alcohol

Ethanol

C - C

H H

H H

HH – O

C2H5OH

Functional Group?

Alcohol

Ethanol

C - C

H H

H H

HH – O

C2H5OH

Carboxylic Acid

Carboxylic Acid

Functional Group:

Carboxylic Acid

Functional Group:

– COOH

Carboxylic Acid

Ethanoic Acid

Carboxylic Acid

Ethanoic Acid

Chemical Formula?

Carboxylic Acid

Ethanoic Acid

RCOOH

Carboxylic Acid

Ethanoic Acid

CH3COOH

Carboxylic Acid

Ethanoic Acid

CH3COOH

Chemical Structure?

Carboxylic Acid

Ethanoic Acid

R - C O – H

O

CH3COOH

Carboxylic Acid

Ethanoic Acid

C - C

H

H

H

O – H

O

CH3COOH

Carboxylic Acid

Ethanoic Acid

C - C

H

H

H

O – H

O

CH3COOH

Functional Group?

Carboxylic Acid

Ethanoic Acid

C - C

H

H

H

O – H

O

CH3COOH

Reaction

Carboxylic Acid + Alcohol

Reaction

O

H – O – R’

Carboxylic Acid + Alcohol

R – C – O – H

Reaction

R – C – O – H

O

H – O – R’

Carboxylic Acid + Alcohol

Reaction

R – C – O

O

– R’

O – HH –

Carboxylic Acid + Alcohol

Ester

R-oate + R’-yl

R – C – O – R’

O

Ester

R-oate + R’-yl

Functional Group:

R – C – O – R’

O

Ester

R-oate + R’-yl

Functional Group: -COO-

R – C – O – R’

O

Ester

R-oate + R’-yl

Functional Group: -COO-

R – C – O – R’

O

Ester

R’-yl R-oateR’-yl (derived from name of the Alcohol)R-oate (derived from name of the Carboxylic Acid)

Functional Group: -COO-

R – C – O – R’

O

Reaction

Ethanoic Acid + Ethanol

Reaction

Ethanoic Acid + Ethanol

H

H – C – C – O – H

H

O H H

H H

H – O – C – C – H

Reaction

Ethanoic Acid + Ethanol

H

H – C – C – O – H

H

O H H

H H

H – O – C – C – H

Reaction

Ethanoic Acid + Ethanol

O – HH –

H

H – C – C – O

H

O H H

H H

– C – C – H

Reaction

Ethanoic Acid + Ethanol

H – O – H

H

H – C – C – O

H

O H H

H H

– C – C – H

Reaction

Ethanoate + Ethyl

H – O – H

H

H – C – C – O

H

O H H

H H

– C – C – H

Reaction

Ethanoate + Ethyl

H – O – H

Functional Group:

H

H – C – C – O

H

O H H

H H

– C – C – H

Reaction

Ethanoate + Ethyl

H – O – H

Functional Group: -COO-

H

H – C – C – O

H

O H H

H H

– C – C – H

Reaction

Ethanoate + Ethyl

H – O – H

Functional Group: -COO-

H

H – C – C – O

H

O H H

H H

– C – C – H

Reaction

Ethyl Ethanoate + Water

H – O – H

H

H – C – C – O

H

O H H

H H

– C – C – H

Ester

Ethyl Ethanoate + Water

H – O– H

H

H – C – C – O

H

O H H

H H

– C – C – H

Ester

Ethyl Ethanoate + Water

H – O– H

Chemical Formulae?

H

H – C – C – O

H

O H H

H H

– C – C – H

Ester

Ethyl Ethanoate + Water

H – O– H

RCOOR’

H

H – C – C – O

H

O H H

H H

– C – C – H

Ester

Ethyl Ethanoate + Water

H – O– H

CH3COOCH2CH3 or CH3COOC2H5

H

H – C – C – O

H

O H H

H H

– C – C – H

Ester

Ethyl Ethanoate + Water

H – O– H

H2O

H

H – C – C – O

H

O H H

H H

– C – C – H

CH3COOCH2CH3 or CH3COOC2H5