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pOH to OH-, H+ Calculator

The formulas to calculate H+ and OH from the pOH value is –

∴ [H+] = 10-pH and [OH] = 10-pOH

pOH to [H+] and [OH-] Calculator

pOH to [H+] and [OH-] Calculator

[H+] =
[OH-] =
 

How to use pOH to H+, OH calculator?

Using the above calculator, you can easily convert the pOH value to the concentrations of H+ and OH ions in the solution.

  1. Enter a pOH value in the input field labeled “pOH =”.
  2. Click the “Calculate” button.
  3. The results for [H+] and [OH] will be displayed in the “result” section along with a Step by Step solution.

How to calculate H+ and OH from pOH?

The pH and pOH of a solution are related by the equation:

∴ pH + pOH = 14

pH is the negative logarithm of the concentration of H+ ions (represented as [H+]) to the base 10 as shown in the formula given below:

∴ pH = -log10(H+)

pH formula

The pOH is similarly related to [OH] and can be calculated as:

∴ pOH = -log10(OH)

pOH formula

So, we can solve for either [H+] or [OH]:

∴ [H+] = 10-pH

∴ [OH] = 10-pOH

Example of calculating H+ and OH using the “pOH to H+, OH calculator”

Let’s say we have been given the value of pOH and we need to calculate the [H+] and [OH] values.

For exampleIf the pOH value = 8, what are the [H+] and [OH] values?

As we know the pH and pOH of a solution are related by the equation:

pH + pOH = 14

As pOH is given as 8, therefore, we can calculate pH value using above formula:

∴ pH = 14 – pOH = 14 – 8 = 6

The formulas to calculate the H+ and OH concentrations are:

∴ [H+] = 10-pH

∴ [OH] = 10-pOH

Substitute the pH and pOH values:

[H+] = 106 = 1.00 × 10-6 M

[OH] = 108 = 1.00 × 10-8 M

how to use pOH to H+ and OH- calculator

pH, pOH, H+, and OH calculation

pOHpH[H+] (M)[OH] (M)
1401.01.0 x 10-14
1311.0 x 10-11.0 x 10-13
1221.0 x 10-21.0 x 10-12
1131.0 x 10-31.0 x 10-11
1041.0 x 10-41.0 x 10-10
951.0 x 10-51.0 x 10-9
861.0 x 10-61.0 x 10-8
771.0 x 10-71.0 x 10-7
681.0 x 10-81.0 x 10-6
591.0 x 10-91.0 x 10-5
4101.0 x 10-101.0 x 10-4
3111.0 x 10-111.0 x 10-3
2121.0 x 10-121.0 x 10-2
1131.0 x 10-131.0 x 10-1
0141.0 x 10-141.0

Numericals based on “Converting pOH to OH and H+

Let’s say we are given a solution with a pH value of 5 and we want to find the concentrations of H+ and OH ions in this solution.

We are given a pH of 5 and need to calculate [H+] and [OH].

We know that [H+] can be calculated from the pH as:

∴ [H+] = 10-pH

So,

∴ [H+] = 10-5 = 0.00001 M or 1.0 x 10-5 M

Now, Calculate the concentration of OH ions

First, we need to find the pOH, which is related to pH by:

⇒ pOH = 14 – pH

∴ pOH = 14 – 5 = 9

Then, we calculate [OH] using the pOH as:

∴ [OH] = 10-pOH

∴ [OH] = 10-9 = 1.0 x 10-9 M

∴ For a solution with a pH of 5, the concentration of H+ ions is 1.0 x 10-5 M, and the concentration of OH ions is 1.0 x 10-9 M.

Suppose we are given a solution with a pOH of 3. We want to determine the concentrations of H+ and OH ions in this solution.

We are given a pOH of 3 and need to calculate [H+] and [OH].

We know that [OH] can be calculated from the pOH as:

∴ [OH] = 10-pOH

So,

∴ [OH] = 10-3 = 0.001 M or 1.0 x 10-3 M

Now, Calculate the concentration of H+ ions

First, we find the pH, which is related to pOH by:

∴ pH = 14 – pOH

∴ pH = 14 – 3 = 11

Then, we calculate [H+] using the pH as:

∴ [H+] = 10-pH

∴ [H+] = 10-11 = 1.0 x 10-11 M

∴ For a solution with a pOH of 3, the concentration of H+ ions is 1.0 x 10-11 M, and the concentration of OH ions is 1.0 x 10-3 M.

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About the author

Vishal Goyal author of topblogtenz.com

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/

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