Khan Academy: Empirical, Molecular, and Structural Formulas

Learn about the differences between empirical, structural, and molecular formulas with examples in this video.Explore how the simplest whole-number ratio of atoms in a compound is the empirical formula. Learn how the molecular formulas...

A video lecture explaining the difference between the molecular and empirical formula. The video also shows how to calculate the molecular mass of a compound. [15:54]

The resource from Khan Academy and the Association of American Medical Colleges provides study content for the MCAT. This resource discusses cellular organelles and cellular structure.

Take the bewilderment out of basic formula writing! Young organic chemists explore the various ways of writing chemical formulas in an animated video. The narrator explains the process of writing formulas in displayed, empirical,...

Video tutorial provides an overview of DNA transcription, translation, and replication during mitosis and meiosis while also teaching about chromosomes, chromatids, and chromatin. [18:23]

Article takes an in-depth look at the structure and function of the plasma membrane and cytoplasm of cells, the phospholipid bilayer, and microvilli.

Find out how tonicity is determined by ions that don't move across membranes and how it affects the movement of water. Rishi is a pediatric infectious disease physician and works at Khan Academy. [11:02]

A video lecture explaining how to find the molecular and empirical formula knowing the percent composition of each element. The problem is solved in easy to follow steps. [9:30]

A video discussing the molecular structure of glucose. Learn how the structure can be linear and ring shaped. [9:18]

A video discussing how three fatty acids and a glycerol molecule come together to form a triglyceride. [11:03]