Many of us find that pH confuses us because we are not entirely confortable with Logarithm . Moreover, as the acidity increases, the pH decreases. The Playground below is designed to take the mystery out of pH. Every item has been put there to play with and help you get familiar with the numbers. First, click the plus and minus 0.1 buttons and compare the values to the teaching scale on the right. Then click on the other buttons.
Teaching uses approximate values which can quite easily be remembered.
Type a number into either box and press Enter or Return to see the conversion. The numbers on the right are colored to show how progressive steps of doubling can be used to generate an approximate table of logarithms. Each number is double the one which is separated by a step of pH 0.3. This range is comparable to other clinical variables. It is useful to compare the discrepancy between Teaching Mode and Accurate Mode by repeatedly clicking any of the four middle buttons, first in one mode and then in the other.