This is an introduction to the pH scale.
Acids are chemical compounds that release hydrogen ions (H⁺) whenplaced in water.
pH is a measure of how acidic a solution is.
The concentration (M) of a solution is definedas the number of moles of solute divided by the volume of solution.
On a simple level, the pH scalecan be viewed as a ranking ofthe number of hydrogen ionsin a solution.
pH can be expressed using the concentration of hydrogen ions, M
M can be written in scientific notation
1 x 10⁻¹ M
1 x 10⁻² M
1 x 10⁻³ M
1 x 10⁻⁴ M
However, it would be easier to use the power instead
pH can be conveniently expressed as the positive exponent of the H⁺ ionconcentration.
You can see that the more acidic a solution is, the lower the pH
pH can be viewed as the power of hyrogen ion concentration