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A buffer of HA and A- has [HA] = [A-] = 0.3M and a pH of 5.0. Then, 0.2M of HCl is added to the b...

A buffer of HA and A- has [HA] = [A-] = 0.3M and a pH of 5.0. Then, 0.2M of HCl is added to the bu↵er. What is the new pH of the solution? (You may assume no change in the volume of the solution.)

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