A sample of ammonium phosphate contains 3.18 mol of H atoms. The number of moles of O atoms in the sample is : | Mole Concept and Some Basic Concepts of Chemistry — Chem-Mantra

Question

A sample of ammonium phosphate $(NH_4)_3PO_4$ contains 3.18 mol of H atoms. The number of moles of O atoms in the sample is :

Answer: C

💡 Solution & Explanation

Ratio of $H:O = 12:4 = 3:1$. $\text{Moles of O} = \text{moles of H} / 3 = 3.18 / 3 = 1.06$. [1]

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