A pH meter measures a pH or the acidity/alkalinity of substances. Most pH meters rely on a glass electrode that measures the number of hydrogen ions in the solution. Usually, pH meters need to be ...

Learn how to test soil ph at home and how accurate are soil ph testers to gauge the precision of home test kits resulting in more efficient and nutrient-rich gardening. You can test your soil at home ...

Understanding the nature of pH has bedeviled beginning (and not-so-beginning) chemistry students for nearly as long as chemistry has had students. It all seems so arbitrary, being the base-10 log of ...