pH acids bases play online

This app gives information about a couple of strong and weak acids and bases such as hydrochloric acid, nitric acid, sulfuric acid, acetic acid, formic acid, sodium hydroxide and ammonia solution.
For certain conditions the pH and pOH values of these acids and bases are worked out and a general way to calculate pH and/or pOH values is described. Finally specific items about the acids and bases are looked at.
...And if you are tired of chemistry...then have fun watching the animations or listening to the audio samples from Max Idol's crime fiction!