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The acid dissociation constant of acetic acid is Ka = 1.74x10-5. (a) How much does the...

The acid dissociation constant of acetic acid is Ka = 1.74x10-5. (a) How much does the pH value of 10 mL 0.05 M acetic acid solution change if we add 40 mL 1.25 x10-2 M Na-acetate solution to it? (b) How many mL of a 0.05 M NaOH solution must be added to the acetic acid solution above in order to change the pH value by exactly 1 unit?

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