Consider a buffer solution prepared by dissolving 0.15 mol of benzoic acid (C6H5COOH) and 0.30 mol of sodium benzoate (NaC6H5COO) in 1.00 L of solution. (Ka of Benzoic acid  = 6.3 x 10-5). If 0.05 mol of HCl is added to this buffer solution the pH of the solution will drop slightly. The pH does not drastically decrease because the HCl reacts with the ____ present in the buffer solution.Question 8Select one:a.C6H5COO-b.H+c.H2Od.C6H5COOHClear my choice

Calculate the pH of a buffer solution prepared by dissolving 0.25 mol benzoic acid (C6H5COOH) and 0.15 mol sodium benzoate (C6H5COONa) in 1.00 L of solution. (Ka = 6.3 x 10-5)Question 8Select one:a.4.41b.2.39c.3.98d.10.03

The pH of a buffer solution prepared by using 0.04 M of C6H5COONa and 0.02 M C6H5COOHsolutions is(Note: Ka of acid is 6.4 × 10−5 at 25°C)A. 3.89B. 4.19C. 4.49D. 6.19

A chemist prepared a buffer by mixing stock solutions of acetic acid and sodium acetate together to obtain concentrations of [acetic acid] = 0.10 M and [sodium acetate] = 0.15 M in the final solution.However, when they measured the pH of the prepared buffer solution, the pH turned out to be higher than expected according to their calculation. What should the chemist do to fix the pH of the buffer? Question 6AnswerAdd more acetic acidAdd a small amount of waterAdd a small amount of solid NaOHAdd more sodium acetateReduce the volume of the buffer solution by boiling off some solvent

How will diluting a buffer solution affect its pH?Question 4AnswerThe pH will remain the same as the concentrations of both weak acid and weak base components remain unchangedThe pH will remain the same as the amounts of both weak acid and weak base components remain unchangedThe pH will decrease as the concentration of the weak acid component will increaseThe pH will increase as the concentration of the weak base component will increase

A solution is prepared by adding 500 mL of 0.300 mol/L of carbonic acid solution and 500 mL of 0.150 mol/L sodium hydrogen carbonate solution. The Ka value for carbonic acid is 4.4 x 10-7. What is the pH of the resultant buffer solution?