GKFix MCQ Question

Which of the following equations is used to calculate the pH of a basic buffer?

• A. pH = pKa + log([salt]/[acid])
• B. pOH = pKb + log([salt]/[base])
• C. pH = pKw – (pKb + log([salt]/[base]))
• D. pH = pKa + log([base]/[conjugate acid])