Question

You are caring for the freshwater aquarium of a friend while they are on vacation. You are told to check the pH of the tank and make sure that it stays between 6.5 and 7.0. When you check the water the pH is 8.0. The water in the tank is:

Answer 1

Answer:

The water in the tank is basic.

Explanation:

Acidity or basicity of an aqueous solution is determined through it pH value.

$pH=-log[H^{+}]$ , where $[H^{+}]$ is concentration of $H^{+}$ (in molarity) in solution.

As a matter of fact, a pH scale has been established such as:

          Acidic ($0\leqslant pH$), Neutral ($pH=7$) and Basic ($7$)

As pH = 8.0 lies in the basic range of pH scale therefore the water in the tank is basic.