A sample of ammonium phosphate contains 3.18 mol of H atoms. The number of moles of O atoms in the s — Mole Concept and Some Basic Concepts of Chemistry Chemistry Question

💡 Solution & Explanation

In $(NH_4)_3PO_4$, there are 12 H atoms and 4 O atoms per formula unit. <br>The ratio of moles $O : H = 4 : 12 = 1 : 3$. <br>$\text{Moles of O} = \text{Moles of H} \times (1/3) = 3.18 / 3 = 1.06$ mol. [1]