Question

What is the pH of a 1.8M solution of HClO4?

Answer 1

The pH of a 1.8M solution of HClO4, which is a strong acid and fully dissociates in water, is approximately 0.26.

Step-by-step explanation:

The pH of a 1.8M solution of HClO4 is found by using the formula pH = -log[H3O+]. Since hydrochloric acid HClO4 is a strong acid, it fully dissociates in water, which means the concentration of hydronium ions [H3O+] is equal to the concentration of the acid, 1.8M. So the calculation becomes:

pH = -log[1.8]

Using a calculator:

pH = -log[1.8] ≈ 0.26

Answer 2

The pH of a 1.8 M solution of HClO4 is around 0.744. HClO4 is a strong acid that completely breaks apart in water.

The pH of a liquid tells us how acidic or basic it is. For strong acids like HClO4, the pH depends on how much of it is in the solution.

To figure out the pH, we use a simple formula: pH = -log[H+].

In this case, since HClO4 is a strong acid, the concentration of H+ ions is the same as the concentration of HClO4, which is 1.8 M.

Plugging this into the formula: pH = -log[1.8]

This gives us a pH of around 0.744.

So, the pH of a 1.8 M solution of HClO4 is about 0.744, indicating a pretty strong acid.