Lab: Calorimetry and Specific Heat — Unit test

Question 8 • Chemistry A.1 - F26 - Jacob Metsker

Which description correctly characterizes the acidity or basicity of a solution?

Answer

The higher the pH is, the more the hydroxide ion concentration decreases and the more acidic the solution becomes.

The higher the pH is, the more the hydroxide ion concentration increases and the more basic the solution becomes.

The lower the pH is, the more the hydronium ion concentration decreases and the more acidic the solution becomes.

The lower the pH is, the more the hydronium ion concentration increases and the more basic the solution becomes.

Explanation

As pH increases, a solution becomes more basic. In water, this corresponds to an increase in hydroxide ion concentration. Therefore, the correct description is that higher pH means more hydroxide ions and a more basic solution.

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