A sample of ammonium phosphate ( NH 4)3 PO 4 contains 3.18 moles of H -atom. The number of moles of O- atom in the sample is

Question

A sample of ammonium phosphate ( NH 4)3 PO 4 contains 3.18 moles of H -atom. The number of moles of O- atom in the sample is (A) 0.265 (B) 0.795 (C) 1.06 (D) 3.18

Tardigrade Admin · Accepted Answer

Number of moles of O atoms =(1/3) moles of H atoms =(1/3) × 3.18=1.06 mol

Q. A sample of ammonium phosphate $(N H_{4})_{3} P O_{4}$ contains $3.18$ moles of $H$ -atom. The number of moles of $O -$ atom in the sample is

0.265

0.795

1.06

3.18

Number of moles of $O$ atoms $= \frac{1}{3}$ moles of $H$ atoms
$= \frac{1}{3} \times 3.18 = 1.06 m o l$

Q. A sample of ammonium phosphate (NH4​)3​PO4​ contains 3.18 moles of H -atom. The number of moles of O− atom in the sample is