a student following the procedure in this experiment prepared three solutions by adding 11.50, 23.00, and 34.50 mL of a 7.60 x 10-2 M NaOH sloution to 50.00 mL of a 0.112M soution of a weak acid. The solutions were labeled 1,2,and 3, respectively. Each of the solutions was diluted to a total volume of 100.00 mL with distilled water. The pH readings of these solutions were: 1)6.42, 2) 6.81, and 3) 7.09

1) convert the pH of each solution to an equivalent H3O+ ion concentration.

2) For each solution, Caluate the number of moles of acid added.

3) For each solution, caluate the number of moles of OH- ion added.

4) For each solution, determine the number of moles of HAn and of An- ion at equilibrium.

5) For each solution, caluate the HAn and An- ion molar equilibrium concentrations.

6) Determine the reciprocal of the An- ion concentration for each solution.