This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American I remember learning about acids and bases (or ...

In this episode, Dr Sunayana Bhargava and Tulela Pea define acids, alkalis and the pH scale. They look at the difference between strong, weak, concentrated and dilute acids. Suitable for: AQA, Edexcel ...

An acid-base indicator is a substance that changes color as the pH of the solution changes. Indicators work because they are weak acids which when in solution, exist in equilibrium with their ...

This lab includes a theoretical explanation of how buffers work and how they are made, including a derivation of the Henderson-Hasselbalch equation. Students will use what they have learned to ...

Blood is naturally slightly alkaline or basic. Here’s what that means. The pH scale measures how acidic or alkaline — basic — something is. Your body works constantly to carefully control pH levels of ...