Summary
Summary Topic 12 - Acids and Bases
- Institution
- AQA
A summary of topic 12 from AQA A Level Chemistry Specification
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A, acid phaser
BRONSTED -
DISSOCIATION OF WATER
LOWRY THEORY partially disociates -110=1-1++01-1
-
0 An acid is a proton kw is the ionic product of water lmotdm G) -
DONOR
• A base is a proton kw=[Ht][OH -1 at 25°C (298k)
ACCEPTOR '
[1×10-7]
Log ,j[ H ]
'
= -
0 Acid base equilibria
-
involves the movement =/ ✗ 10-14
log ,o[ 1×10-7]=
=-
7-
of protons (Ht)
pka =
log ,oKa)
-
•
No molecule canadas
abasewloutalonepar
of electrons
STRONG BASE
1-1,0++011 Rw [1-1+-1101-1]
01-120+1-1,0 pOH= log [01-1]=-10%(0-001)
-
= -
,☐
=3
acid base acid base
pkw =p H POH +
pkw =/ 4 PH -44-3=-1
,o[ Ht ] 14 pOH=pµ
pH log
-
= -
⑤ UFFE ☒ able to counteract the effect
log [0-1]=1
-
,o
of small changes
in pH .
CHSCOOH Ctbcoo + Ht }cHscoona
-
→
STRONG ACID
H+=k¥ae% logo / Ht) _=pH -
Almost
fully disoaafg
INDICATORS
•
H'
-
= moles ✗ base ✗ dissociation
-
Logo (0-001×1×1)=3
0.001M of HCl
¢
%
WEAK ACID
< ka
stronger and
-
Ra=t¥¥I=¥
I
log ,o( ✓kata] )=pH
-
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