by Tram Nguyen | Jan 24, 2025 | Uncategorized
1. What does a pH measure? The pH value of a substance depends on the balance between hydrogen ion (H+) and hydroxyl ion (OH-) concentrations. The pH tester measures this balance and shows how active an acid or base is based on hydrogen ion activity. When the...
by Tram Nguyen | Jan 23, 2025 | Uncategorized
1. What is a hydrometer? A hydrometer is a handy tool used to check how dense or heavy a liquid is. It looks like a long glass stick with a weighted bulb at one end and markings along the tube to measure specific gravity. This tool is incredibly useful in various...
by Tram Nguyen | Jan 8, 2025 | Uncategorized
1. What is an oscilloscope? An oscilloscope is an electronic test instrument used to visualize and analyze electrical signals. It displays signal waveforms on a screen, showing how they change over time. The horizontal axis represents time, while the vertical axis...
