Question

a sample of ammonium phosphate contains 3.18moles of hydrogen atom the number of moles of oxygen atom in the sample is

Answer 1

Let's count individual atoms in (NH4)3PO4(NH4)3PO4

NHPO=3=12=1=4N=3H=12P=1O=4

From this,we come to know that 12 moles of Hydrogen correspond to 3 moles of Oxygen.

Let xx moles of Oxygen correspond to 3.18 moles of Hydrogen

∴x4∴x=3.1812=3.18×412=3.183=1.06moles

Answer 2

$\Huge\blue{\mathfrak{\underline{\underline{answer}}}}$

$\large\red{\textbf{1.06 moles}}$

$\Huge\blue{\mathfrak{\underline{\underline{Solution}}}}$

→ 1 mole of (NH4)3PO4 will contain 12 mole H- atom

→ So, 3.18 mole of H-atom will be present in

→ 1/12 × 3.18 moles of (NH4)3PO4

= 0.265 moles of (NH4)3PO4

→ 1 mole of (NH4)3PO4 contains 4 moles of H-atom.

→ So, 0.265 (NH4)3PO4 will contain

→ 4×0.265 = 1.06 moles of oxygen atoms.