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Byju's Answer
Standard IX
Chemistry
Writing Chemical Formula
How many mole...
Question
How many moles are present in
5.3
g
of anhydrous sodium carbonate?
A
0.03
moles
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B
0.04
moles
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C
0.05
moles
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D
0.01
moles
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Solution
The correct option is
A
0.05
moles
given that
5.3
g
N
a
2
C
O
3
atomic mass
=
2
×
23
+
12
+
3
×
16
=
106
g
/
m
o
l
Moles
=
g
r
a
m
w
e
i
g
h
t
a
t
o
m
i
c
m
a
s
s
=
5.3
106
=
0.05
m
o
l
e
s
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0
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