Back to marketplace

Unit 4.5 Carboxylic Acids

No description yet. This curated deck is ready for daily study.

Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

#1
Front (Question)

Weird starting?

Back (Answer)

I suppose

#2
Front (Question)

What is the pH of ethanoic acid?

Back (Answer)

3 pH

#3
Front (Question)

What is the pH of phenol?

Back (Answer)

5 - 6 pH

#4
Front (Question)

What is the pH of water?

Back (Answer)

It should be 7 pH

#5
Front (Question)

What is the pH of ethanol?

Back (Answer)

7.3 pH

#6
Front (Question)

How is an ethanoate ion created?

Back (Answer)

Ethanoic acid + water

#7
Front (Question)

Equation formula of the creation of ethanoate ion

Back (Answer)

CH3COOH + H2O ⇌ CH3COO- + H+/H3O+

#8
Front (Question)

How do acids tend to dissociate (2-way)

Back (Answer)

• When in water • liberating a hydrogen ion

#9
Front (Question)

How do u determine the strength of an acid? (1 additional thing)

Back (Answer)

• How well they dissociate in H2O • The more H+(aq) ions dissociated = strong acid

#10
Front (Question)

Explain stabilisation of ethanoate ion? (3-way)

Back (Answer)

• More stable than phenoxide ion • as negative charge can be delocalised • over the 2 equivalent oxygen atoms

#11
Front (Question)

Equation of ethanoate ion stabilisation? (might be asked to draw, so get whiteboard)

Back (Answer)

H3C(=O)O- <-> H3CO-(=O) -> H3CO–O (- in between o’s) Highly refer to booklet

#12
Front (Question)

Explain stabilisation of phenoxide ion? (2-way + 2-way)

Back (Answer)

• Stabilised through resonance of the negative charge • through the ring system • Less stable than ethanoate • as the resonance structures aren’t equivalent

#13
Front (Question)

Explain stabilisation of ethanol? (2-way + 2-way)

Back (Answer)

• Very little tendency for ethanol, • to give away the proton • No resonance structures possible • to support the negative charge

#14
Front (Question)

Ethanoic acid rxn with sodium hydroxide? (2 things)

Back (Answer)

• Reacts • Acid neutralised to form a salt

#15
Front (Question)

Ethanoic acid rxn with metal carbonate? (2 things)

Back (Answer)

• Reacts • Formation of CO2 gas (effervescing)

#16
Front (Question)

Phenol rxn with sodium hydroxide? (2 things)

Back (Answer)

• Reacts • Acid neutralised to form a salt

#17
Front (Question)

Phenol rxn with metal carbonate?

Back (Answer)

No reaction.

#18
Front (Question)

Ethanol rxn with sodium hydroxide?

Back (Answer)

No reaction.

#19
Front (Question)

Ethanol rxn with metal carbonate?

Back (Answer)

No reaction.

#20
Front (Question)

What is the equation for the formation of a carboxylic acid from a primary alcohol? ([O]-> means oxidation)

Back (Answer)

H3CCH2OH [O]-> H3CCOH [O]-> H3CCOOH

#21
Front (Question)

What’s an oxidant that can oxidise primary alcohols to a carboxylic acid?

Back (Answer)

Acidified potassium dichromate

#22
Front (Question)

Chemical formula for acidified potassium dichromate?

Back (Answer)

H+/K2Cr2O7

#23
Front (Question)

What is the colour change observation of the formation of a carboxylic acid from a primary alcohol?

Back (Answer)

Orange to green

#24
Front (Question)

But what are primary alcohols usually form into after being oxidised? (2 things)

Back (Answer)

• Aldehydes • Carboxylic acids