What is h2po4-?

H2PO4- is the dihydrogen phosphate anion. It is composed of one phosphorus atom, two hydrogen atoms, and four oxygen atoms. The charge of the ion is -1, meaning there is one more electron than protons in the ion.

Dihydrogen phosphate is a common component in many biological systems, serving as a source of phosphate for various metabolic processes. It is also used as a buffering agent in chemistry and biology due to its ability to maintain a stable pH in aqueous solutions.

H2PO4- is a conjugate base of phosphoric acid (H3PO4) and can donate a proton to form HPO4^2- or release another proton to form PO4^3-. This ability to donate or accept protons makes dihydrogen phosphate an important player in maintaining the pH balance in biological systems.