C10 Organic Reactions: Carboxylic Acids

Front 1

State the first 4 Carboxylic acids in the homologous series and state the functional group

Back 1

-COOH

Methanoic acid

Ethanoic acid

Propanoic acid

Butanoic acid

Front 2

Describe what happens when Carboxylic acids react with metal carbonates

Back 2

They react to make

- the salt (metal _____noate)

- Carbon dioxide

- water

Front 3

What are the products of Propanoic acid reacting with potassium carbonate

Back 3

Potassium propanoate + carbon dioxide + water

Front 4

Are Carboxylic acids strong or weak acids in water

And explain why 3 marks

Back 4

They are weak acids in water:

- Because they only partially ionise in aqueous solutions they are weak

- This means Carboxylic acids have a higher PH than a strong acid such as hydrochloric acid

Front 5

What is the ending of the structural formula for alcohols and Carboxylic acids

Back 5

The functional group

Front 6

State the structural formulae for

- Propane

- Propene

- Propanol

- Propanoic

Back 6

C3H8

C3H6

CH3CH2CH2OH

or

C3H7OH

CH3CH2COOH

or

C3H5COOH

Front 7

Draw the displayed formula for Ethanoic acid

Back 7

Front 8

State the equation for working out:

- Alkanes

- Alkenes

- Alcohols

- Carboxylic acids

Back 8

CnH2n+2

CnH2n

CnH2n+1

CnH2n-1

Front 9

State the structure formula for Methanoic acid

Back 9

HCOOH

Front 10

Describe what happens when Carboxylic acids react with water (generally)

Back 10

Carboxylic acids is ionising to produce ions

- Also dissolve in water to form acidic solutions

Front 11

Draw the symbol equation of Ethanoic acid + water

and state the products below

Back 11

CH3COOH - - - - -> CH3COO - + H+

<- - - -- -

PRODUCTS:

- Ethanoate ion + H+ (positively charged hydrogen ion)

Front 12

What type of reaction is Carboxylic acids with water and what does this mean

Back 12

Reversable reactions:

Both ions can combine to form the Carboxylic acid

Front 13

Why might Esters be used in sweets

Back 13

Because they have a pleasant smell

Front 14

How do you produce a ester

Back 14

Reacting alcohol with a Carboxylic acid

Front 15

What catalyst do you use when reacting alcohol with Carboxylic acids

Back 15

Sulfuric acid

Front 16

State the products for

Ethanoic + Ethanol

Back 16

- Ethyl Ethanoate (ester)

- Water

Front 17

What are the products of Carboxylic acids and alcohols

Back 17

- Ester

- Water

Front 18

What type of reaction is Carboxylic acids with alcohol and what does mean

Back 18

Reversable reaction:

- Ester + water can recombine to make Carboxylic acid + alcohol