Question

An unknown substance has hydrogen ion concentration of [H+]=3.1*10^-8M. Find the pH and classify the substance as acidic or basic

Answer 1

The pH of the substance with a hydrogen ion concentration of 3.1*10^-8M is 7.51, indicating that the solution is basic.

Step-by-step explanation:

The pH of a substance can be calculated using the formula pH = -log[H+], where [H+] is the concentration of hydrogen ions in moles per liter (M). Given that the hydrogen ion concentration of the unknown substance is [H+]=3.1*10^-8M, we can calculate the pH as follows:

pH = -log(3.1*10^-8)

pH = 7.51

As the pH is higher than 7, the substance is classified as basic.

Answer 2

pH = 7.51. The substance is basic.

[H⁺] = 3.1 × 10⁻⁸ mol·L⁻¹.

pH = -log[H⁺] = -log(3.1 × 10⁻⁸) = 7.51

The substance is basic because pH > 7.