What is the effect of dilution on the pH of a strong acid?

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Question: What is the effect of dilution on the pH of a strong acid?

Options:

Correct Answer: pH increases

Solution:

Dilution of a strong acid decreases its concentration, thus increasing the pH.

What is the effect of dilution on the pH of a strong acid?

What is the effect of dilution on the pH of a strong acid?

Step 1: Understand what a strong acid is. A strong acid completely dissociates in water, meaning it breaks down into ions.
Step 2: Know that pH is a measure of how acidic or basic a solution is. Lower pH means more acidic, and higher pH means less acidic.
Step 3: When you dilute a strong acid, you add more water to it. This means the acid is less concentrated.
Step 4: As the concentration of the acid decreases, the number of hydrogen ions (H+) in the solution also decreases.
Step 5: Since pH is related to the concentration of hydrogen ions, a decrease in hydrogen ion concentration leads to an increase in pH.
Step 6: Therefore, diluting a strong acid results in a higher pH value, making the solution less acidic.

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