Understanding pH and H+ Concentration
* pH: A measure of the acidity or alkalinity of a solution. Lower pH values indicate higher acidity (more H+ ions).
* H+ Concentration: The amount of hydrogen ions (H+) in a solution.
The Relationship:
The pH scale is logarithmic, meaning each whole number change in pH represents a tenfold change in H+ concentration.
Calculation
* pH 4: Has 10^-4 moles of H+ per liter.
* pH 5: Has 10^-5 moles of H+ per liter.
Difference:
10^-4 is ten times greater than 10^-5.
Answer: A solution with a pH of 4 has ten times more H+ ions than a solution with a pH of 5.
