The pH scale ranges from 0 to 14 and is measured on what type of scale?

The pH scale is indeed measured on a logarithmic scale. This means that each whole number change on the scale represents a tenfold change in acidity or alkalinity. For instance, a solution with a pH of 3 is ten times more acidic than one with a pH of 4, and a hundred times more acidic than one with a pH of 5. The logarithmic nature of the scale allows for the vast range of hydrogen ion concentrations in solutions to be simplified into a more manageable format ranging from 0 to 14.

In contrast, a linear scale would suggest that changes between values are uniform, which does not accurately represent the relationship between pH levels and acidity. An exponential scale implies growth or decay at an increasing rate, which is not the case with the pH measurement as it does not adhere to a consistent exponential growth. An arbitrary scale lacks a defined relationship or standardization between values, making it unsuitable for accurately expressing the variations in acidity or alkalinity found in pH measurements. Thus, the logarithmic scale is the correct framework for understanding how pH is quantified.