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a) Calculate the pH of a buffer solution composed of 0.10 M butyric acid (CH3(CH2)2COOH, Ka = 1.5 x 1-^-5) and 0.20 M sodium butyrate, (NaCH3(CH2)2COO).

B) What is the pH after 10.0 mL of 1.0 M NaOH solution has been added to 250 ml of the buffer solution described in part a?

c) What is the pH after 10.0 ml of 1.0 M HCl solution has been added to 250 ml of the buffer solution described in part a of this problem?

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