Summary: Can a barbershop quartet introduce the subject of stoichiometry? They do in this program, which in section one presents the Law of Conservation of Mass and how to balance equations. Section two explains the difference between the mass number and atomic mass, what an isotope is, and how to work with atomic mass units to find the average atomic mass.
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2005
View online at AVOD
Summary: When is a mole not a mole? Section one of this program demystifies concepts such as Avogadro's Constant, molecular mass, and molar mass. In section two, the Percent Composition Formula is spotlighted, while section three addresses the Empirical Formula and its use in determining formula weight. The calculation of mass in the conversion of magnesium to magnesium oxide in a segment called...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2005
View online at AVOD
Summary: Two very important products derived from air are ammonia and nitric acid. Ammonia is produced when hydrogen gas is extracted from natural gas and steam, mixed with nitrogen from the air, and heated. The resulting ammonia gas is condensed into liquid form, to be made into other chemicals. Ammonia is also used to make nitric acid, basic in the production of fertilizers, detergents, and many other...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2007
View online at AVOD
Summary: This program considers the bonds formed when atoms share electrons (covalent bonding) The idea of filling electron shells to reach a more stable state is used to explain the formation of simple molecules such as water and methane. Shapes of molecules are explained by considering the repulsion between molecular orbitals. Further shapes are illustrated using CH4, NH3, and NH4. Double bonds (O2)...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2005
View online at AVOD
Summary: Air, an important industrial raw material, is first filtered to remove any solid matter. Then its constituent gases-nitrogen, oxygen, and other trace gases-can be separated by compressing the air, cooling it, and then allowing it to expand, which cools it further. Since each gas liquefies at a different temperature, the gases can easily be separated. As the air expands, it is used to drive...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2007