Question

a sample of ammonium (nh4)3 PO4 CONTAIN 3.18 moles of hydrogen atoms . the number of moles of oxygen in the sample is

Answer 1

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Answer 2

Given :

• There is a sample of Ammonium phosphate (NH4)3PO4.

• Number of moles of H-atom = 3.18

To Find :

The number of moles of oxygen atoms.

Solution :

Moles of Hydrogen and oxygen atoms present in the sample are :-

Number of moles of H-atom = 12

Number of moles of O-atom = 4

Now, let the number of moles of oxygen atoms be x.

And, given number of H-atoms = 3.18

Then, according to the question

4 moles of O - atoms are required for 12 moles of H-atoms.

Then,

x moles of O-atoms required for 3.18 moles of H-atom = 3.18×4/12 = 1.06 moles.

Therefore, there are 1.06 moles of Oxygen atoms in the sample.