CHEM 20322: CHEM 121

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.

Uncover the count of chlorine atoms in various chemical compounds. Grasp the calculations in Carbon tetrachloride, Calcium chloride, Phosphorus trichloride, and Sodium chloride. Gain clarity on atomic count across multiple molecules.

This video shows you how to balance equations from the reaction of lead(II) sulfide with hydrochloric acid to ammonia's interaction with oxygen. Understand the nuances of atom balancing and grasp the precise stoichiometric relationships.

We'll guide you through the process of calculating the energy associated with X-ray photons when the wavelength is 0.154 nm. This video offers a practical application of physics and helps you understand the energy spectrum of X-rays. Whether you're a science enthusiast or a student, you'll gain valuable insights into this intriguing topic.

Delve into the intricate interplay between glycogen synthesis activation and glycogen phosphorylase deactivation. Discover the essential mechanisms that ensure the efficient management of glucose storage and utilization in the body.

Discover the importance of calculating percent error to assess the precision of experiments. Through real-world examples like measuring alcohol's density and the mass of gold, learn how this value offers insights into measurement accuracy and ways to refine methods.