Understanding pH
* pH scale: The pH scale measures the acidity or alkalinity of a solution. It ranges from 0 to 14.
* Lower pH: Means a higher concentration of hydrogen ions (H+), making the solution more acidic.
* Higher pH: Means a lower concentration of hydrogen ions (H+), making the solution more alkaline (basic).
The Calculation
The pH scale is logarithmic, meaning each whole number change represents a tenfold difference in hydrogen ion concentration.
* pH 4: Has 10 times more hydrogen ions than pH 5.
Answer
There are ten times more hydrogen ions in a solution with a pH of 4 compared to a solution with a pH of 5.
