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Standard XII
Chemistry
Stoichiometric Calculations
Calculate the...
Question
Calculate the volume of 'carbon dioxide at NTP evolved by strong heating of 20 g calcium carbonate.
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Solution
The balanced equation is:
C
a
C
O
3
1
m
o
l
100
g
→
C
a
O
+
C
O
2
1
m
o
l
=
22.4
l
i
t
r
e
a
t
N
T
P
100
g
of
C
a
C
O
3
evolve carbon dioxide = 22.4 litre
20
g
C
a
C
O
3
will evolve carbon dioxide
=
22.4
100
×
=
4.48
l
i
t
r
e
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