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Tardigrade
Question
Chemistry
The decomposition of a certain mass of CaCO3 gave 11.2 dm3 of CO2 gas at STP. The mass of KOH required to completely neutralise the gas is
Q. The decomposition of a certain mass of
C
a
C
O
3
gave
11.2
d
m
3
of
C
O
2
gas at STP. The mass of
K
O
H
required to completely neutralise the gas is
3315
211
AIIMS
AIIMS 2012
Report Error
A
56 g
B
28 g
C
42 g
D
20 g
Solution:
Weight of
11.2
d
m
3
of
C
O
2
gas at STP
=
2
44
=
22
g
56
g
K
O
H
+
44
g
C
O
2
⟶
KH
C
O
3
K
O
H
required for complete neutralisation of
22
g
C
O
2
=
44
56
×
22
=
28
g