The formula to calculate the pH value from the [H^{+}] or [H_{3}O]^{+ }is –

∴ pH = -log_{10}[H^{+}]

Where [H^{+}] represents the concentration of hydrogen ions. Its unit is moles/liter or M.

H+ to pH calculator

H^{+} to pH Calculator

pH =

Step by Step Solution:

To determine pH, you can use this formula given below:

⇒ pH = -log([H⁺])

Given that,

⇒ H⁺ = M

Substitute the [H⁺] value into the formula:

∴ pH = -log()

∴ pH =

How to use the “H^{+} to pH” calculator?

Using the above calculator you can easily calculate the pH value of strong acid from H^{+} concentration.

Enter a [H^{+}] value in the input field labeled “[H^{+}] value=”.

Click the “Calculate” button.

The result of pH will be displayed in the “result” section with a step-by-step solution.

How to calculate pH from H^{+}?

The pH of a solution is related to [H^{+}] or [H_{3}O]^{+} by the formula given in the equation.

∴ pH = -log_{10}[H^{+}]

Example of calculating pH value using “H^{+} to pH calculator”

Let’s say we have given the value of [H^{+}] and we need to calculate the pH value.

For example – Find the pH of a 0.005 M HCl solution.

We know that HCl is a strong acid that completely ionizes to release H^{+} and Cl^{–} ions in water.

⇒ So the concentration of HCl solution = concentration of H^{+} ions released in the solution. As the concentration or molarity of the HCl solution is given in the question statement i.e., 0.005 M.

∴ So we know [H^{+}] = 0.005 mol/L.

So, just put the value of [H^{+}] in the respective field and then press calculate button.

∴ So, the value for pH for the given [H^{+}] is 2.30 approx.

Example 2: Let’s say the given hydrogen concentration [H^{+}] is 2.5 x 10^{-4}. Now calculate the pH for this value using a calculator.

In this problem, [H^{+}] is given in scientific notation which is 2.5 x 10^{-4}, this value can also be written as “2.5e-4”.

Just put this value of [H^{+}] in the calculator field, and press calculates button to get step by step solution.

So, for the hydrogen concentration of 2.5 x 10^{-4}, the pH will be 3.60 approx.

Vishal Goyal is the founder of Topblogtenz, a comprehensive resource for students seeking guidance and support in their chemistry studies. He holds a degree in B.Tech (Chemical Engineering) and has four years of experience as a chemistry tutor. The team at Topblogtenz includes experts like experienced researchers, professors, and educators, with the goal of making complex subjects like chemistry accessible and understandable for all. A passion for sharing knowledge and a love for chemistry and science drives the team behind the website. Let's connect through LinkedIn: https://www.linkedin.com/in/vishal-goyal-2926a122b/

Topblogtenz is a website dedicated to providing informative and engaging content related to the field of chemistry and science. We aim to make complex subjects, like chemistry, approachable and enjoyable for everyone.