COuld any one please help me on this buffer capacity chemistry problem Please!!?

Saddixya

New member
1.00L of 0.200M sodium Lactate and 0.05M lactic acid. Ka of lactic acid is 1.4*10^-4. I calculate the pH of the buffer system to be 4.45
a) Define buffer capacity? ( I know the defifinition) But What is the qualitative buffer capacity of this system?
b) Is it the same neutralizing both acid and base if not why
I calculated the pH to be 4.45*
 
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