What can you say about the amount of hydrogen ions relative to the amount of hydroxide ions in a solution that has a pH of 2?
To understand the amount of hydrogen ions relative to the amount of hydroxide ions in a solution with a pH of 2, it's important to know that the pH scale measures the concentration of hydrogen ions (H+) in a solution.
The pH scale ranges from 0 to 14, with values below 7 considered acidic, 7 considered neutral, and values above 7 considered basic or alkaline. Each pH unit represents a tenfold difference in hydrogen ion concentration.
In the case of a solution with a pH of 2, it is highly acidic. A pH of 2 means that the concentration of hydrogen ions (H+) is 100 times greater than in a neutral solution.
Since pH is a measure of hydrogen ion concentration, we can say that the concentration of hydrogen ions in the solution with a pH of 2 is much higher than the concentration of hydroxide ions (OH-). In acidic solutions, such as this one, there is an excess of hydrogen ions compared to hydroxide ions.