CHEM 7239: Chem 103

Explore the fascinating world of intermolecular forces in this brief video, featuring HCl, F?, and C?H?? molecules. Learn about the bonds that hold these substances together!

Explore the endothermic reaction between Ba(OH)2·8H2O and NH4NO3 observing its impact on surroundings like the freezing water. Discover why touching the beaker feels cold and learn about heat transfer in such chemical reactions. This video is an insightful demonstration of heat absorption in chemical reactions.

Learn how to calculate the amounts of Cesium and Iodine in a 38.77g sample of a Cs-I compound. Starting with a 125g compound this tutorial uses conversion factors to find 19.83g of Cesium and 18.94g of Iodine. Perfect for chemistry students seeking to master stoichiometry and compound analysis.

Explore the calculations for mole fractions, partial pressures, and total pressure in a 22.4 dm³ vessel with H? and N? at 273.15 K.

Unravel the Lewis structures of BrF?, ClF?, and IF? and their relationship with the octet rule. Examine how fluorine bonds with bromine, chlorine, and iodine. Identify molecules that deviate from the standard octet distribution.

Learn about mass changes in an iron bar when exposed to moist air, including the formation of rust (Fe?O?) and how to calculate the final mass.