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

MHT CET Chemistry question

How many moles of magnesium phosphate, will contain 0.25 moles of oxygen atoms?

Answer: (B)

One mole of Mg₃(PO₄)₂ contains 8 mol O atoms, so moles = 0.25/8 = 3.125 ×

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Question ID VK-041124