pH of Indicator Calculator

    pH of Indicator Calculator

    Calculate the pH of an indicator solution using the Henderson–Hasselbalch equation:
    \[ \text{pH} = \text{p}K_{in} + \log\left(\frac{[\text{In}^-]}{[\text{HIn}]}\right) \]

    * Enter the indicator's pK₍in₎ and the ratio [In⁻]/[HIn].

    Step 1: Enter Indicator Parameters

    Example: 7.00 (typical for many indicators)

    Example: 1 (equal amounts give pH = pKin)

    Formula: \[ \text{pH} = \text{p}K_{in} + \log\left(\frac{[\text{In}^-]}{[\text{HIn}]}\right) \]

     
    pH of Basic Buffer Calculator
    Previous
    Rydberg Formula Calculator for Uni-electronic Species
    Next