Who discovered pH scale?

🔑Key Points:
The pH scale was invented by the Danish biochemist Soren Peter Lauritz Sorensen.
He introduced this scale in 1909 to measure the acidity and basicity of substances. 

🔴Additional Information:

• pH Scale:
pH is a measure of how acidic/basic a substance is.
pH stands for the potential of hydrogen, which refers to the concentration of hydrogen ions in a solution.
The range goes from 0 – 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base.
pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water.