The chemical name of the HPO4 ion is hydrogen phosphate.
Here's a breakdown to provide more context:
- HPO4²⁻ is the ion we're discussing. The superscript 2⁻ indicates that it carries a charge of negative two.
- "Hydrogen" refers to the presence of a hydrogen atom (H) in the ion.
- "Phosphate" indicates that it's derived from phosphoric acid (H3PO4).
Therefore, the entire ion is called hydrogen phosphate.
Examples of compounds containing the hydrogen phosphate ion:
- Ammonium hydrogen phosphate
- Potassium hydrogen phosphate
- Sodium hydrogen phosphate
- Lithium hydrogen phosphate
- Tin(IV) hydrogen phosphate
- Iron(II) hydrogen phosphate
These compounds all contain the HPO4²⁻ ion bonded to other elements or molecules.