Question

Predict whether a given aqueous solution is acidic, basic or neutral if its pH is (a) 7.0, (b) 11.9 and (c) 3.2.

Answer 1

7.0- neutral

11.9- basic

3.2- acidic solution

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Answer 2

A given aqueous solution is neutral when pH = 7, basic when pH = 11.9 and acidic when pH = 3.2.

pH is a universal scale used to measure the relative acidity or basicity of a substance, compared to a perfectly neutral substance such as distilled water (pH = 7). Acids are defined by the presence of hydrogen ions (H+) in the solution, while bases are identified by the presence of hydroxide ions (OH-). Any solution of pH above 7 is considered basic, while solutions with pH below 7 are acidic.