Calculate the amount of Ca, O and C in 1.5g CaCO3. If in the another sample the Ca is 40%, C is 12 and O is48%. And the law of constant composition is valid
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In 100 g CaCO
3
, 40 g Ca is present.
In 4 g CaCO
3
, Let x g Ca be present
4
x
=
100
40
⟹x=1.6 g
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