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Standard X
Chemistry
Mole Concept in Balanced Reaction
7 mole of car...
Question
7 mole of carbon combine with excess of oxygen to form Co2 gas. Calculate the number of moles of CO2 produces and weightage of oxygen used
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Q.
2 moles carbon reacts with 2 moles oxygen to produce ______ moles of
C
O
2
Q.
If
27
g
of carbon is mixed with
88
g
of oxygen and is allowed to burn to produce
C
O
2
, then:
Q.
12
g
of carbon combines with
64
g
sulphur to form
C
S
2
.
12
g
carbon also combines with
32
g
oxygen to form
C
O
2
.
10
g
sulphur combines with
10
g
oxygen to form
S
O
2
. These data illustrate the
Q.
When 12.0 g of carbon reacted with oxygen to form CO and
C
O
2
at
25
∘
C
and constant pressure, 75.0 kcal of heat was liberated and no carbon remained. Calculate the mass of oxygen needed for it and the mole of CO and
C
O
2
formed.
[Given that :
Δ
f
H
C
O
2
=
−
94.05
and
Δ
f
H
C
O
=
−
26.41
k
c
a
l
m
o
l
−
1
]
Q.
2
g
of butane is burnt with an excess of oxygen to form
C
O
2
. What is the approximate amount of
C
O
2
formed?
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