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Hey folks, Having trouble with a few study guide questions for Chemistry. Hoping someone can assist: 1. Calculate the pH of a buffer solution that is 0.100 M in HC2H3O2 and 0.100 M in NaC2H3O2. * Show all calculations. 2a) Calculate the pH of a buffer solution that is 0.250 M in HCN and 0.170 M in KCN. For HCN, Ka = 4.9 x 10^-10 (pka = 9.31). Use the equilibirum approach to calculate this pH * Show all your calculations. 2b) Repeat the pH calculations for the previous question, but this time use the Henderson-Hasselbalch approach. * Show all your calculations. 3. When we do the titration of a weak acid with a strong base, the initial pH is that of the weak acid solution to be titrated or that of the strong acid solution that we are using?

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