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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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