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Figure

As the concentration of hydrogen ions (H+) increases, a solution becomes more acidic, and the pH value decreases. As the concentration of hydrogen ion acceptors (such as hydroxyl or bicarbonate ions) increases, a solution becomes more basic, and the pH value increases. Note the pH of some common substances.

a Hydrogen Ion Concentrations and pH

Increasingly basic

Neutral—neither acidic nor basic

Grams of H+ per Liter

pH

Essentials of Human Physiology

Essentials of Human Physiology

This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.

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