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.