21.60 g of sodium benzoate, NaC6H5COO, is dissolved in enough water to make 0.750 L of solution. The Ka for benzoic acid, C6H5COOH, is 6.3 x 10-5.
Write a chemical equation for the reaction of benzoate ion, C6H5COO-, and water
Calculate the percent ionization of the benzoate ion.
Calculate the pH of the sodium benzoate solution.
Calculate the pH of a solution made by adding 6.100 g of benzoic acid to 250.0 mL of the sodium benzoate solution. Assume no volume change.
Calculate the pH of a solution made by adding 100.0 mL of a 0.400 M solution of hydrochloric acid to 250.0 mL of the original sodium benzoate solution. Assume volumes are additive.
If an additional 25.0 mL of the hydrochloric acid solution is added to the solution produced in part e, calculate the pH of the final solution.