Answer: pH of a buffer solution.
- A Kc of a reaction
- B pH of a buffer solution
- C Enthalpy of neutralisation
- D EMF of a cell
Correct answer: B. pH of a buffer solution
Explanation: This equation relates pH to pKa and the ratio of conjugate base to weak acid in a buffer.
As the reaction proceeds, reactant concentration falls and product concentration rises until both level off at equilibrium.
Concept context
When forward and reverse reaction rates are equal, equilibrium is reached. Learn about Kc, Kp, Le Chatelier's principle, and acid-base equilibria, including pH, buffer solutions, and solubility product.