Science, Tech, Math › Science Acids, Bases, and pH Print Science Chemistry Basics Chemical Laws Molecules Periodic Table Projects & Experiments Scientific Method Biochemistry Physical Chemistry Medical Chemistry Chemistry In Everyday Life Famous Chemists Activities for Kids Abbreviations & Acronyms Biology Physics Geology Astronomy Weather & Climate By Anne Marie Helmenstine, Ph.D. Anne Marie Helmenstine, Ph.D. Chemistry Expert Ph.D., Biomedical Sciences, University of Tennessee at Knoxville B.A., Physics and Mathematics, Hastings College Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. She has taught science courses at the high school, college, and graduate levels. Learn about our Editorial Process Updated on July 03, 2019 Learn about acids, bases, and pH, including definitions and calculation. Acid-Base Basics Chris Ryan/Getty Images Acids produce protons or the H+ ion while bases accept protons or generate OH-. Alternatively, acids may be viewed as electron pair acceptors and bases as electron pair donors. Here are ways of defining acids and bases, acids and bases and sample calculations. Acid-Base Terms and Definitions Formulas of Common Acids and Bases Strong and Weak Acids and Bases Structures of Common Acids List of the Strong Acids List of the Strong Bases What Is the Strongest Acid? Read More 10 Facts About Acids and Bases By Anne Marie Helmenstine, Ph.D. pH Facts and Calculations Ann Cutting/Getty Images pH is a measure of the hydrogen ion (H+) concentration in an aqueous solution. Understanding pH can help you predict the properties of a solution, including the reactions it will complete. A pH of 7 is considered neutral pH. Lower pH values indication acidic solutions while higher pH values are assigned to alkaline or basic solutions. pH Measurements - What Is pH? Review of Common pH Calculations pH Scale of Common Chemicals What Does pH Stand For? Can You Have Negative pH? Buffers Table of pH -- Household Chemicals pH Indicators from the Home and Garden Projects and Demonstrations Medioimages/Photodisc/Getty Images There are many experiments, projects, and demonstrations you can do to examine acids, bases, and pH. Many color-change reactions involve acids and bases, including some clock reactions and disappearing ink. Blue Bottle Demonstration Make Disappearing Ink Make Red Cabbage pH Indicator More Acid-Base Demonstrations Quiz Yourself sanjeri/Getty Images These multiple choice quizzes test how well you understand acids, bases, and pH. Basics of Acids and Bases Quiz Strong and Weak Acids and Bases Quiz Cite this Article Format mla apa chicago Your Citation Helmenstine, Anne Marie, Ph.D. "Acids, Bases, and pH." ThoughtCo, Apr. 5, 2023, thoughtco.com/acids-bases-and-ph-overview-603657. Helmenstine, Anne Marie, Ph.D. (2023, April 5). Acids, Bases, and pH. Retrieved from https://www.thoughtco.com/acids-bases-and-ph-overview-603657 Helmenstine, Anne Marie, Ph.D. "Acids, Bases, and pH." ThoughtCo. https://www.thoughtco.com/acids-bases-and-ph-overview-603657 (accessed April 20, 2024). copy citation