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Byju's Answer
Standard XII
Chemistry
Valency and Oxidation States
q. Given that...
Question
q. Given that △ H ionisation of CH3COOH is 0.5 kcal/mol and △ H ionisation of NH_4OH is 1.5 kcal/mol. Te enthalpy of neutralisationh of NH_4OH and CH3COOH is (1) -10.5 kcal (2) - 11.7 kcal (3) -7.2 kcal (4) -13.7 kcal
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Q.
The enthalpy of neutralisation of
N
H
4
O
H
and
C
H
3
C
O
O
H
is -10.5 kcal
m
o
l
−
1
and enthalpy of neutralisation of
C
H
3
C
O
O
H
with strong base is -12.5 kcal
m
o
l
−
1
. The enthalpy of ionisation of
N
H
4
O
H
will be:
Q.
The heat released in the neutralisation of HCI and NaOH is 13.7 kcal/mol, the heat
released on neutralisation of NaOH with
C
H
3
C
O
O
H
is 3.7 kcal/mol.
The
Δ
H
of ionisation of
C
H
3
C
O
O
H
is:
Q.
Heat of neutralisation of
H
C
l
against
N
a
O
H
is
13.7
k
c
a
l
e
q
−
1
. What will be the ionisation energy of
C
H
3
C
O
O
H
in
k
c
a
l
m
o
l
−
1
if its heat of neutralisation is
11.7
k
c
a
l
e
q
−
1
?
Q.
Heat of neutralisation of
H
C
l
by
N
a
O
H
is 13.7 kcal per equivalent and by
N
H
4
O
H
is 12.27 kcal. The heat of dissociation of
N
H
4
O
H
is:
Q.
Enthalpy of neutralisation of the reaction between
C
H
3
C
O
O
H
(
a
q
.
)
a
n
d
N
a
O
H
(
a
q
.
)
i
s
−
13.2
k
c
a
l
e
q
−
1
and that of the reaction between
H
2
S
O
4
(
a
q
.
)
and KOH (aq.) is - 13.7 kcal
e
q
−
1
.
The enthalpy of dissociation of
C
H
3
C
O
O
H
(
a
q
.
)
is:
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