A solution is prepared by adding 0.0231moles of H3O+ ions to 3.33L of water. What is the pH of this solution

2.15

Explanation:

For this question, we have to remember the pH formula:

By definition, the pH value is calculated when we do the -Log of the concentration of the hydronium ions (). So, the next step is the calculation of the concentration of the hydronium ions. For this, we have to use the molarity formula:

We already know the number of moles (0.0231 moles) and the volume (3.33 L). So, we can plug the values into the molarity formula:

With this value, now we can calculate the pH value:

The pH would be 2.15

I hope it helps!