KHAFRE
.
When water acts
-
as acid and abase
strong acid
Y Ht .
Hgot
"
Forms Kw constant
l
Kw
-
-
ft 'T COAT
l
when a weak acid is diluted x10, the pH
l
increases only by 0.5 units.
l poly basic acids are H2SO4, H3PO4
and CO2 + H2O.
l
V
strong
base
Buffersolutuins &
turns
It can be shown that buffer solutions are most efficient at resisting changes in pH
when the concentrations of acid and alkali are the same.
addition
① of solution
endpoint
between
4-6
f ryiolesofprodlllt
total volume
titrations
Haifneutralesations
at half-neutralisation: pH = pKa
}
•
endpoint occurs at 20am
'
.
i
•
half neutrals Akon at 10cm
i i.
pH 46
i ,
I
pH
r
pKa
-
-
r r
4.6 Wyka
-
-
10-46
t7xlO
-
-
.
When water acts
-
as acid and abase
strong acid
Y Ht .
Hgot
"
Forms Kw constant
l
Kw
-
-
ft 'T COAT
l
when a weak acid is diluted x10, the pH
l
increases only by 0.5 units.
l poly basic acids are H2SO4, H3PO4
and CO2 + H2O.
l
V
strong
base
Buffersolutuins &
turns
It can be shown that buffer solutions are most efficient at resisting changes in pH
when the concentrations of acid and alkali are the same.
addition
① of solution
endpoint
between
4-6
f ryiolesofprodlllt
total volume
titrations
Haifneutralesations
at half-neutralisation: pH = pKa
}
•
endpoint occurs at 20am
'
.
i
•
half neutrals Akon at 10cm
i i.
pH 46
i ,
I
pH
r
pKa
-
-
r r
4.6 Wyka
-
-
10-46
t7xlO
-
-
