Question

A sample of ammonium phosphate contains 3.18moles oh hydrogen atoms . the no of oxygen atoms are

Answer 1

Ammonium Phosphate contains 12moles of Hydrogen and 4 moles of oxygen.

Given 3.18 moles of H2  = 3.18/12
 
                                         = 0.265

There are 4 oxygen atoms in Ammonium phosphate = 4 * 0.265

                                                                                         = 1.06 moles.

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.