c) For phosphate buffer, derive a buffer capacity formula that describes when a strong base is added.
d) Plot the buffer capacity against pH (between 1 and 13) for a 100 mM phosphate buffer.
e) Based on your figure, discuss at which pH the phosphate buffer above is suitable to use as
buffer.

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Buffer capacity a) What is the unit of B? b) Show step by step how we find the solution for B. You can start from below Ctot Ka Ka+10-PH Cb= B = dC dpH -10-PH + =In10 (Stot[H] (K₂+[H*])² 10-PH + [H+] + KW), Buffer capacity a) What is the unit of B? b) Show step by step how we find the solution for B. You can start from below Ctot Ka Ka+10-PH Cb= B = dC dpH -10-PH + =In10 (Stot[H] (K₂+[H*])² 10-PH + [H+] + KW),