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Question
Chemistry
What is correct for 10 g of CaCO3 ?
Q. What is correct for 10 g of
C
a
C
O
3
?
8809
183
Some Basic Concepts of Chemistry
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A
It contains 1 g atom of carbon
11%
B
It contains 0.3 g atoms of oxygen
69%
C
It contains 12 g of calcium
9%
D
It refers to 0.1 g-equivalent of
C
a
C
O
3
12%
Solution:
10
g
of
C
a
C
O
3
=
100
10
=
0.1
g
mol of
C
a
C
O
3
=
0
⋅
1
×
3
g-atom of oxygen
=
0
⋅
3
g
atoms of oxygen