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Byju's Answer
Standard XII
Chemistry
Mole Concept
The number of...
Question
The number of atoms and g-atoms present in:
i. 60 g carbon is
×
10
23
and
respectively.
ii. 224.4 g
C
u
is
×
10
23
and
respectively.
(Atomic Weight of
C
and
C
u
are 12 u and 63.6 u, respectively. Avogadro’s number =
6.02
×
10
23
)
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Solution
g-atom
=
weight
gm-atomic weight
Number of atoms
=
weight
×
N
A
gm-atomic weight
(a) For 60 g of
C
: g atom =
60
12
=
5
Number of atoms:
60
×
6.02
×
10
23
12
=
30.1
×
10
23
(b) For 224.4 g of
C
u
: g atom =
224.4
63.6
=
3.53
Number of atoms
=
224.4
×
6.02
×
10
23
63.6
=
21.24
×
10
23
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Q.
The number of atoms and g-atoms present in:
i. 60 g carbon is
×
10
23
and
respectively.
ii. 224.4 g
C
u
is
×
10
23
and
respectively.
(Atomic Weight of
C
and
C
u
are 12 u and 63.6 u, respectively. Avogadro’s number =
6.02
×
10
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Q.
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Q.
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Q.
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