A worker checks the pH level of desalinated water in the laboratory at the desalination plant in Palma de Mallorca on April 4, 2014. The pH scale was initially invented in 1909 by chemist S.P.L ...

How to Make Log Scale in Excel. Microsoft's Excel spreadsheet program includes a Chart Wizard for making a variety of graphs from tabulated data. In some situations, as with scientific experiments ...

With pH signifying potential of hydrogen, the logarithmic scale is used to specify the acidity or basicity of an aqueous solution. The scale, which rates acidity or alkalinity from 0 to 14, can be ...