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Class 11 NEET Chemistry Some Basic Concepts Of Chemistry
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© examsnet.com
Question : 57
Total: 60
The number of oxygen atoms in
4.4
g
of
C
O
2
is
(1989)
1.2
×
10
23
6
×
10
22
6
×
10
23
12
×
10
23
Validate
Solution:
1
mol
of
C
O
2
=
44
g
of
C
O
2
∴
4.4
g
C
O
2
=
0.1
mol
C
O
2
=
6
×
10
22
molecules
[since, 1 mole
C
O
2
=
6
×
10
23
molecules]
=
2
×
6
×
10
22
atoms of
O
=
1.2
×
10
23
atoms of O
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