The Student Room Group

amine question

Hey! im confused about this, can someone explain?

Identify a substance that could be added to aqueous butylamine to produce a basic buffer solution.

The answer is an unconcentrated strong acid.
Shouldn't it be a weak acid because a weak acid and a base makes a buffer solution?

Thanks in advance :smile:
Amines are weak bases and a weak acid with a strong base makes a buffer solution and in this case we have a weak base so it would be the opposite which is a strong acid

Hope this helps :smile:
Reply 2
Original post by muffboo
Amines are weak bases and a weak acid with a strong base makes a buffer solution and in this case we have a weak base so it would be the opposite which is a strong acid

Hope this helps :smile:

Oh I thought you could only do it with a strong base and weak acid.

Thank you !!! :smile:
Original post by ayapapaya
Oh I thought you could only do it with a strong base and weak acid.

Thank you !!! :smile:

nwsss
Original post by ayapapaya
Hey! im confused about this, can someone explain?

Identify a substance that could be added to aqueous butylamine to produce a basic buffer solution.

The answer is an unconcentrated strong acid.
Shouldn't it be a weak acid because a weak acid and a base makes a buffer solution?

Thanks in advance :smile:

Buffers can be either acidic or basic.

Acidic buffer = weak acid + salt of the weak acid
e.g. ethanoic acid + sodium ethanoate

Basic buffer = weak base + salt of weak base
e.g. ammonia + ammonium chloride

-----------------------------------------------------------------------------------------------
Signature
Colourful Solutions Chemistry Videos on YouTube

Quick Reply

Latest