Here's why:
* The pH scale: The pH scale measures the acidity or alkalinity of a solution. It ranges from 0 to 14, with 0 being the most acidic and 14 being the most alkaline (basic).
* Hydrogen ions and pH: The concentration of hydrogen ions is inversely proportional to the pH. This means that as the concentration of H+ increases, the pH decreases, making the solution more acidic.
* Acid definition: Acids are substances that release hydrogen ions (H+) when dissolved in water. So, an increase in H+ concentration directly reflects an increase in the acidic nature of the solution.
In summary: More hydrogen ions in a solution mean a lower pH, which means the solution is more acidic.
