What does pH stand for?

pH stands for "Power of Hydrogen." This term is used in chemistry to describe the acidity or alkalinity of a solution. The pH scale ranges from 0 to 14, with lower values indicating higher acidity (more hydrogen ions present) and higher values indicating higher alkalinity (fewer hydrogen ions present). The concept of pH is fundamental in many fields, including biology, medicine, and environmental science, as it influences various chemical processes and reactions.

The other options presented are unrelated to the scientific definition of pH. "Power of Helium," "Power of Philippines," and "Hydrogen Power" do not accurately describe the role that hydrogen ions play in determining acidity and alkalinity in solutions.