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Chemistry
Which is correct for 10 g of CaCO 3 ?
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Q. Which is correct for $10\, g$ of $CaCO _{3}$ ?
Some Basic Concepts of Chemistry
A
It contains $1 \,g$ atom of carbon
13%
B
It contains $0.3\, g$ atoms of oxygen
43%
C
It contains $12\, g$ of calcium
13%
D
It refers to $0.1 \, g$ equivalent of $CaCO _{3}$
30%
Solution:
$ 10\, g$ of $CaCO _{3} =0.1 \, mol$ of $CaCO _{3}$
$=0.1 \times 3 \, g$- atom of Oxygen
$=0.3 \, g$ atoms of oxygen