CHE 215: Analytical Chemistry

Explore the protonation of amino acids, specifically valine and threonine, when subjected to a pH lower than their isoelectric points, highlighting the structural changes in their carboxyl and amino groups.

This video tackles the classification of boiling water as either a physical or chemical change, examining the provided options. We conclude that boiling is a physical change, as the water's chemical composition remains the same during the transition from liquid to gas.

Learn a practical application of chemistry and mathematics in your daily life. Whether you're a tea or coffee enthusiast, this video offers valuable insights into scale removal and maintaining your kitchen appliances.

Unravel the reaction of chromium and oxygen forming chromium(III) oxide. Examine different scenarios to determine the limiting reactant using stoichiometric ratios. Understand how to predict product amounts through these calculations.

Detailed walkthrough of calculating sulfur dioxide gas volume produced from burning tetraphosphorus trisulfide. Utilizes stoichiometry and the Ideal Gas Law to derive results under specific conditions. Step-by-step guide for understanding chemical reactions and gas volume calculations

Explore oxidation and reduction processes across four chemical reactions differentiating between acid-base and redox activities. Highlighting key substances and their roles in each reaction.