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Question: a buffer contains the weak acid ha and its conjugate...

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A buffer contains the weak acid HA and its conjugate base A−. The weak acid has a pKa of 4.36 and the buffer has a pH of 4.92. Part A Which statement is true of the relative concentrations of the weak acid and conjugate base in the buffer? Which statement is true of the relative concentrations of the weak acid and conjugate base in the buffer? [HA] = [A−] [HA] < [A−] [HA] > [A−] Part B Which buffer component would you add to change the pH of the buffer to 4.72? Which buffer component would you add to change the pH of the buffer to 4.72? A− HA

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