in-a-solution-with-a-ph-of-100-and-a-pka-of-90-what-is-the-predominant-species-a

Question

In a solution with a pH of 10.0 and a pKa of 9.0, what is the predominant species and why?

Accepted Answer

Conjugate base predominates because pH is greater than pKa

Answer

Cannot be determined

Answer

Equal concentrations of conjugate acid and base because pH equals pKa

Answer

Conjugate acid predominates because pH is greater than pKa