Question

You have a solution that has a pOH of 2.13. What is the pH of this solution?

Answer 1

The pH of the solution = 11.87

Given :

A solution that has a pOH of 2.13

To find :

The pH of the solution

Solution :

Step 1 of 2 :

Write down pOH of the solution

Here it is given that pOH of the solution is 2.13

Step 2 of 2 :

Calculate pH of the solution

We know that for a solution sum of pH and pOH is always 14

∴ pH + pOH = 14

⇒ pH + 2.13 = 14

⇒ pH = 14 - 2.13

⇒ pH = 11.87

Hence pH of the solution = 11.87

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Answer 2

The required pH of the solution is 11.87

Calculation:

In the question, it is given that:

pOH of the given solution is = 2.13

To find: The pH of the given solution.

First of all let us understand what pH and pOH means.

pH is actually the level of measurement of how much acidity or basic a solution or a substance is.

pOH, on the other hand is a scale which is used to determine the concentration of hydroxide ion in a solution.

Now, it is important to note that,

The sum of pH and pOH of a solution is always equal to 14

According to this concept, we can write that,

pH + pOH = 14

pH + 2.13 = 14

pH = 14 - 2.13

pH = 11.87

Hence, the pH of the solution is 11.87

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