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1. The first equivalence point for the titration a weak acid is reached when a volume of 26.80mL of NaOH has been added. If the pH of the solution is 4.45 after 13.40 mL of the NaOH has been added, what is the Ka for the acid

2. The first equivalence point for the titration of 0.2567 grams of a weak acid is reached when a volume of 26.80mL of 0.0510 M NaOH(aq) has been added. What is the molar mass of the acid?

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