According to the Henderson-Hasselbalch Equation, When Is the PH Equal

question 54

Multiple Choice

According to the Henderson-Hasselbalch equation, when is the pH equal to the pK_a?

• A) when the concentration of acid is close to zero
• B) when the pH approaches 7
• C) when the concentration of the conjugate base is equal to the ionization constant for water
• D) when the concentration of the conjugate base is equal to the concentration of the acid.
• E) None of the answers is correct.

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