How many moles of O2 are in one mole of H3PO4?

Answer 1

Actually H3PO4 is a molecular formula referring to the compound we know as Phosphoric acid. It doesn't indicate number of moles of H3PO4.

But the number of moles can be found out if the amount in mass or some other measurable quantity(e.g. conc. in solution) is given. The molar mass(mass of 1 mole) of H3PO4 is 98 grams. So if mass is given then it can be converted to grams and dividing by molar mass(i.e 98) we get number of moles.

moles of H3PO4 =(mass of H3PO4 in grams)/98.

1 mole of H3PO4 has ->3 moles of H atoms.

->1 mole of P atoms.

->4 moles of O atoms.

( 1 mole=6.0225 *1023 units)

Answer 2

H had 1 proton/atom

P had 15 proton/atom

Oxygen had 8 Proton/atom

Add up all proton/atom and number of atom in such molecule you would get the proton per molecule.

It is 26 proton in an atom of H3PO4. A mole of H2PO4 would have 26 proton in its' atom.

Answer 3

Two, the are four oxygens in H3PO4, so one mole contains Avogadro's number X 4 oxygen atoms. One mole of O2 contains Avogadro's number X 2 oxygen atoms, so there must be two moles of O2 in H3PO4.

Answer 4

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