Q.

How many mole of CaCO3 will contain 0.12 mole of oxygen atoms?

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a

0.04

b

0.02

c

0.06

d

0.08

answer is A.

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Detailed Solution

3 mole of O-atoms ≡ 1 mole of CaCO3∴0.12 mole of O-atoms ≡0.123 mole of CaCO3≡ 0.04 mole of CaCO3
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How many mole of CaCO3 will contain 0.12 mole of oxygen atoms?