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a) A buffer solution contains 0.292 M CH3NH3Br and 0.447 M CH3NH2 (methylamine). Determine the pH change when 0.098 mol HCl is added to 1.00 L of the buffer. 

pH after addition - pH before addition = pH change = ________

b) Determine the pH change when 0.104 mol HNO3 is added to 1.00 L of a buffer solution that is 0.386 M in CH3COOH and 0.372 M in CH3COO-.________

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