H+ from pH Calculator (Easily calculate H3O+ concentration when pH value given)
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The formula to calculate H+ or H3O+ from the pH value is –
∴ [H+] = 10-pH
- Where [H+] represents the concentration of hydrogen ions. Its unit is moles/liter or M.
pH to H+ Calculator
How to use pH to H+ calculator?
Using the above calculator you can easily calculate the H+ or [H3O]+ concentration from the pH value.
- Enter a pH value in the input field labeled “pH value =”.
- Click the “Calculate” button.
- The result [H+] will be displayed in the “result” section with Step by Step solution.
How to calculate H+ from pH?
The pH of a solution is related to [H+] by the formula given in the equation.
∴ pH = -log10[H+]
Above equation can be transferred by taking antilog –
∴ [H+] = 10-pH
Example of calculating H+ value using “pH to H+ calculator”
Let’s say we have given the value of pH and we need to calculate the H+ value.
For example – If the pH value = 1.60, what is the [H+] value?
As we know, the formula to find H+ from pH is –
⇒ [H+] = 10-pH
So, just put the value of pH in the respective field and then press calculate button.
∴ So, the value for [H+] or [H3O]+ concentration for the given pH (1.60) is 0.025 M approx.
Numericals based on “Converting pH value to H+“
What is the hydrogen ion (H+) concentration of a solution with a pH of 5.2? |
The formula to calculate H+ from pH is – ⇒ [H+] = 10-pH We have given, the pH value which is 5.2. ∴ [H+] = 10-5.2 = 0.0000063 M So, the hydrogen ion (H+) concentration of a solution with a pH of 5.2 is 0.0000063 M. (Use our pH to H+ calculator to verify this). |
The pH of a nitric acid solution is 2.49, How can you determine its Hydrogen ion concentration (H+)? |
Nitric acid (HNO3) is a strong monoprotic acid. It completely ionizes to yield H+ and NO3- ions in an aqueous solution. We can use [H+] = 10-pH to determine hydrogen ion concentration as pH is already given. ∴ [H+] = 10-2.49 = 0.00323 M or mol/L. So, the hydrogen ion concentration (H+) is 0.00323 M for a pH value (2.49) of nitric acid solution. |
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