What is the ph of a solution with a 3.2 × 10−5 m hydronium ion concentration?
4.3
4.5
11
12

The pH of the solution is 4.5

Explanation:

pH is defined as the negative logarithm of hydrogen or hydronium ion concentration. It ranges from the scale of 1 to 14.

The formula used to calculate pH of the solution is:

We are given:

Putting values in above equation, we get:

Hence, the pH of the solution is 4.5

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