Question

This is an impossible formula. Pretend it is real.

Answer 1

There are eight moles of oxygen atoms  in 1 mole of $Mn_{9}(ClO_{4}) _{2}$.

What is the number of moles of oxygen atoms?

We know that a compound is composed of atoms. The atoms that make up the molecule are chemically combined. It is usual that the number of atoms in the compound would correspond with the chemical formula.

Now we have the compound  $Mn_{9}(ClO_{4}) _{2}$. In one mole of the compound we have;

• 9 Moles of manganese atom
• 2 moles of chlorine atom
• 8 moles of oxygen atom

Thus, there are eight moles of oxygen atoms  in 1 mole of $Mn_{9}(ClO_{4}) _{2}$.

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