1. The pOH of a solution is 9.80. Calculate the hydrogen ionconcentration of the solution.M
2. How much NaOH is needed to prepare 484 mL of solution with a pHof 10.00?g
3. The Ka for benzoic acid is 6.5 10-5. Calculate the pH of a 0.14M benzoic acid solution.
4. The pH of an acid solution is 6.20. Calculate the Ka for the acid. The acid concentration is 0.010 M.
5. Calculate the pH for each of the following solutions.
(a) 0.13 M NH3
(b) 0.500 M C5H5N (pyridine)
6. Calculate the pH of a 0.29 M CH3COONa solution.
7. A solution is made by dissolving 17.1 g of HCl in 661 mL ofwater. Calculate the pH of the solution. (Assume that the volumeremains constant.)
8. What is the original molarity of a solution of ammonia whose pHis 11.51?