pH calculator

How to Use the pH Calculator

1. Enter the hydrogen ion concentration (H⁺) of the solution in mol/L in the input field.
2. Click the "Calculate" button to compute the pH.
3. The pH value will be displayed in the result section.

Understanding pH

pH is a logarithmic scale used to specify the acidity or alkalinity of an aqueous solution. It is defined as the negative logarithm (base 10) of the hydrogen ion activity:

pH = -log₁₀[H⁺]

Where [H⁺] is the concentration of hydrogen ions in moles per liter (mol/L). The pH scale typically ranges from 0 to 14:

• pH < 7: Acidic solution
• pH = 7: Neutral solution (pure water at 25°C)
• pH > 7: Alkaline solution