# pH to pOH calculator: Simplifying Acidity and Alkalinity

Welcome to the pH to pOH Calculator, a convenient online tool designed to simplify the conversion between pH and pOH values for aqueous solutions.

## Welcome to the pH to pOH Calculator

## How to Use the pH to pOH Calculator:

**Enter pH Value:**Input the pH value of your solution into the designated field.**Calculate pOH:**Click on the “Calculate pOH” button to obtain the corresponding pOH value.**View Result:**The calculated pOH value will be displayed below the calculator.

**Example Usage:**

Let’s say you have a solution with a pH of 3.5. By entering 3.5 into the calculator and clicking “**Calculate pOH**,” you’ll get the pOH value, revealing the basicity of the solution.

This calculator simplifies the conversion between pH and pOH, providing quick insights into the nature of the solution’s acidity or alkalinity.

Feel free to input pH values and explore the pOH values for various solutions!

## What is the pH and pOH?

**pH:** pH is a measure of the acidity or alkalinity of a solution. It represents the concentration of hydrogen ions (H^{+}) in a solution. pH values range from 0 to 14, where:

- pH < 7 indicates acidity (more H
^{+}ions). - pH = 7 denotes neutrality (equal concentrations of H
^{+}and OH^{–}ions). - pH > 7 signifies alkalinity (more OH
^{–}ions).

**pOH:** pOH is the negative logarithm (base 10) of the hydroxide ion (OH^{–}) concentration in a solution. It’s related to pH by the equation pH + pOH = 14 in aqueous solutions at 25°C. Similar to pH:

- pOH < 7 indicates basic solutions (more OH
^{–}ions). - pOH = 7 is neutral.
- pOH > 7 represents acidic solutions (more H
^{+}ions).

## Calculation:

**pOH Calculation from pH:** To convert pH to pOH, subtract the pH value from 14: pOH = 14 – pH.

**Example: Convert pH to pOH**

**Given:**pH = 4.2**Calculation:**pOH = 14 − pH = 14 − 4.2 = 9.8.**Result:**For a solution with a pH of 4.2, the corresponding pOH is approximately 9.8.

These examples demonstrate the straightforward conversion between pH and pOH using the relationship pH + pOH = 14 in aqueous solutions at 25°C.

**pH Calculation from pOH:** To convert pOH to pH, subtract the pOH value from 14: pH = 14 – pOH.

**Example: Convert pOH to pH**

**Given:**pOH = 10.5**Calculation:**pH = 14 − pOH = 14 − 10.5 = 3.5**Result:**For a solution with a pOH of 10.5, the corresponding pH is approximately 3.5.

These examples demonstrate the straightforward conversion between pH and pOH using the relationship pH + pOH = 14 in aqueous solutions at 25°C.