Assignment:
Q1. Determining Ka. What is the Ka value for a weak acid if a 0.0150-M solution has a pH of 2.67?
Q2. Calculations With Ka. What is the pH of a 0.250-M benzoic acid solution? Ka = 6.3 * 10^-5
Q3. Polyprotic Weak Acid. What are pH, [H3O+], [HSO3-], and [SO32-] in a 1.50 M sulfurous acid solution?
Q4. Calculations With Kb. What is the Kb value for a weak base if a 0.250-M solution has a pOH of 4.7?
Q5. The pH of a Salt Solution. What is the pH of 0.50-M sodium benzoate? The benzoate ion (C7H5O2-) is the anion of benzoic acid.
Provide complete and step by step solution for the question and show calculations and use formulas.