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How would you make a buffer with a volume of 2.0 L, pH of 5.0 and a strength of 0.25 M using 5.0 M acetic acid stock solution (Ka = 1.8x10-5) and sodium acetate ( NaO2C2H3 available as a solid salt FW = 82 g/mole). a) what are the concentrations of acetic acid and sodium acetate in the buffer? b) what mass of sodium acetate is needed? c) what volume of acetic acid stock solution is needed? d) What is the buffer capacity for added acid? e) What is the buffer capacity for added base? f) Why are the two capacities different?

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Category:- Chemistry
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