What are the primary chemical components present in a phosphate buffer at pH 7.4? A) H₃PO₄ and PO₄^3- B) H₂PO₄^- and PO₄^3- C) HPO₄^2- and PO₄^3- D) H₂PO₄^- and HPO₄^2- E) H₃PO₄ and HPO₄^2-

Question

Quizplus · Accepted Answer

At pH 7.4, a phosphate buffer primarily consists of the dihydrogen phosphate ion (H₂PO₄^-) and the hydrogen phosphate ion (HPO₄^2-), which act as a conjugate acid-base pair.

What Are the Primary Chemical Components Present in a Phosphate