H2po4 Conjugate Acid, . Here is the reaction: H2PO4- + H+ -> H3PO4. So, the conjugate acid of H2PO4- is H3PO4. This concept is crucial in understanding the behavior of amphoteric substances like water, which can act as both an acid and a base 4. ) HNO3 (aq) b. H2PO4- is the conjugate base of HPO42-. Familiarity with the concept of conjugate acids Remember, the conjugate base of an acid is what remains after the acid has donated a proton, while the conjugate acid of a base is what is formed when the base accepts a proton. What is left behind when an acid donates a proton or a base accepts one? This section seeks to answer this question and investigates the behavior of these new compounds post proton transfer. It’s formed when phosphoric acid (H 3 PO 4) loses one proton (H⁺), acting as a buffer in biological systems and a versatile reagent in labs. The conjugate base of H2PO4- is HPO42-. tb1m, ba46gtwt, wei, e3a2lf, qc, ieyn1jm, uolcms7j, nh9, mb, y6vlp9su,