CHEM 251: General Chemistry for Engineers

Discover the precise KOH volumes to neutralize H?SO? samples with various concentrations. Learn about the acid-base reaction dynamics and stoichiometry.

Discover how amino acids, specifically glycine, form the foundation of proteins. Understand and visualize the Lewis structure representation of glycine. Grasp the significance of atomic bonding and electron distribution.

This video elucidates the method to sketch Lewis structures for the radical species ClF? and BrO?. Highlighting the distinguishing feature of an unpaired electron, we illustrate the bond arrangements and lone pairs that define these unique chemical entities.

In this video, we explore the information that knowledge of the number of protons in a neutral element's atom can provide. Options for determining neutron count, electron count, and identifying the element's name are examined, with a conclusion that it allows us to know both the number of electrons and the element's name.

We explore Lewis structures, which depict atom bonding and lone electron pairs. We create Lewis structures for potassium, barium, aluminum, and bromine by using group numbers in the periodic table to determine their valence electrons.