What is the valence of h3po4?

Answer 1

Compounds do not have oxidation numbers; only single atoms and elements do.

However:

• hydrogen in compounds always has an ON of +1 (except in hydrides, where it is -1).
• oxygen always has an ON of -2 in compounds (except in peroxides and other certain compounds).
• phosphorous in this case has an ON of +5 (the total ON on oxygens is -8, but -3 is covered by the overall charge of the phosphate anion).

Answer 2

H3PO4 is phosphoric acid. It is made up of three hydrogen atoms, one phosphorus atom, and four oxygen atoms.

Answer 3

H3PO4 doesn't have a valence, per se. If you refer to combining power or equivalence, then it would be considered to have a valence of 3, but this is not a common nomenclature.

Answer 4

The valence of H3PO4 (phosphoric acid) is +5. This is derived by considering the oxidation states of each element in the molecule: hydrogen is +1, phosphorus is +5, and oxygen is -2.

Answer 5

3

Answer 6

4

Answer 7

2

Answer 8

8