Question

A compound contains 3X1024 oxygen atoms .Calculate the number of moles of oxygen

present in the above compound.




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Answer 1

Answer:

Here is your answer mate. Sorry for that handwriting

Answer 2

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The metal (M2+) & perchlorate ion (ClO4−) combine to form a compound with the formula M(ClO4)2

∴ No. of oxygen atoms in 1 mole of M(ClO4)2 =8NA

No. of atoms in 2 moles of M(ClO4)2 =8NA×2=16NA