How many moles of magnesium phosphate, , will contain 0.25 mole of oxygen atoms? [1] — Mole Concept and Some Basic Concepts of Chemistry Chemistry Question

💡 Solution & Explanation

One formula unit of $Mg_3(PO_4)_2$ contains $2 \times 4 = 8$ oxygen atoms. <br>So, 1 mole of $Mg_3(PO_4)_2$ contains 8 moles of O atoms. <br>$\text{Moles of compound} = 0.25 / 8 = 0.03125 = 3.125 \times 10^{-2}$ mol. [1]