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What is the pH of a solution where the concentration of hydrogen ions is 2 x 10⁻⁵ molar?

User Abdullahi
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Final answer:

The pH of a solution with a hydrogen ion concentration of 2 x 10⁻⁵ molar is approximately 4.70, which indicates that the solution is acidic.

Step-by-step explanation:

Calculating pH from Hydrogen Ion Concentration

To find the pH of a solution where the concentration of hydrogen ions [H⁰] is 2 x 10⁻⁵ molar, we use the pH formula which is:

pH = -log[H⁰]

Substituting the given concentration into the formula:

pH = -log(2 x 10⁻⁵)

After performing the calculation we get:

pH ≈ 4.70

Since the pH is less than 7, the solution is classified as acidic.

User Ali Ahsan
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