CHEM 151: General Chemistry Lab 1

Learn the art of precise chemical calculations in this video. Discover how Chromium(III) oxide reacts with hydrogen sulfide to form chromium(III) sulfide and water, all while unraveling the necessary steps to determine the exact quantities involved.

Learn how to determine the number of moles in a given set of atoms using Avogadro's number. This tutorial breaks down the calculation for Aluminum and Iron, simplifying the concept for better understanding.

Join us in this video as we debunk common misconceptions about the periodic table. We explore and clarify statements regarding atomic size, electron configurations, reactivity, and electron removal. Dive into the world of chemistry and gain a deeper understanding of the periodic table's fascinating principles.

Discover the incredible speed of light as it zips 7.5 times around Earth in just a second! Marvel at its daily and yearly travels, equating to billions and trillions of kilometers. Dive deeper into the concept of a 'light year' and its significance in astronomical measurements.

This explanation delves into the phenomenon where the reaction rate decreases over time due to the decrease in reactant concentration, resulting in fewer successful collisions and reactions, without revealing specific examples or findings.