Suppose you are asked to prepare a buffer solution for an upcoming experiment using stock solutions of the weak acid and its conjugate base. Use the following information to determine the volumes of weak acid, conjugate base and distilled water you will need to make the buffer solution: You have 1.0 M stock sodium hydrogencarbonate (NaHCO3) solution, pKa=10.33 You also have 1.0 M stock disodium carbonate (NaCO3) solution The final buffer solution should have a concentration of 80 mM, a volume of 500 mL, and a pH of 9.60 First, use the HH equation to calculate the ratio of the two stock solutions you will need to mix together to reach the target pH, and report this ratio. Next, calculate and report the volumes of weak acid, conjugate base and dH2O you will need to prepare the buffer.

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Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.