# How to Calculate Hydrogen Ion Concentration from pH Value

## What is pH?

pH is simply defined as the measure of the acidity and alkalinity of a solution. It can be obtained mathematically by the following equation:

pH = –Log [H+]

## How to determine the hydrogen ion concentration, [H+]

From the question given above, the following data were obtained:

- pH = 2.32
- Hydrogen ion concentration [H+] = ?

pH = –Log [H+]

2.32 = –Log [H+]

Multiply through by –1

–2.32 = Log [H+]

Take the anti-log of –2.32

[H+] = anti-log (–2.32)

### How to Calculate Hydrogen Ion Concentration from pH Value?

Find out the step-by-step process of calculating hydrogen ion concentration from pH value in the explanation below.

The concentration of the hydrogen ions in the solution is 4.79×10¯³ M

## Understanding the Conversion from pH to Hydrogen Ion Concentration

When dealing with the pH of a solution, it is crucial to understand the relationship between pH and the concentration of hydrogen ions ([H+]). In the given scenario, the pH of lemon juice was determined to be 2.32.

To calculate the concentration of hydrogen ions present in the solution, we utilize the formula:

pH = –Log [H+]

Given pH = 2.32, we can rearrange the equation to solve for [H+]:

[H+] = anti-log (–2.32)

By performing the necessary calculations, we find that the concentration of hydrogen ions in the solution is 4.79×10¯³ M.

This process illustrates the method of converting pH values to hydrogen ion concentrations, a fundamental concept in chemistry that allows us to quantify the acidity or alkalinity of a solution.