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How many moles of magnesium phosphate Mg...

How many moles of magnesium phosphate `Mg_3 (PO_4)_2` will contain 0.25 mole of oxygen atoms ?

A

`3.125xx10^(-2)`

B

`1.25xx10^(-2)`

C

`2.5xx10^(-2)`

D

`0.02`

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The correct Answer is:
A
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