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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 “Cooking with Professor Rowley” ties things together. (31 minutes)



 
                

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Copyright date: ©2000




     


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Atomic Structure
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Atomic structure lies at the crossroads of both chemistry and physics, and this program examines a field of study crucial to both: the scientific shell game known as quantum mechanics. Schrodinger's mathematical distribution and the Pauli Exclusion P...(more details)
 
Chemical Bonding
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"An atom with eight electrons in its valence shell is a happy atom." Section one of this program makes sense of Lewis structures and resonance structures while addressing the Octet Rule and its exceptions. In section two, "Professor Einsteinium" and ...(more details)
 
Introduction to Matter, the Elements, and Units of Measure
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Elements and compounds, accuracy and precision, liters and moles and joules-what does it all mean? After introducing the states, properties, and types of matter, this program proceeds to the periodic table of elements and the qualities of atoms, comp...(more details)
 
Chemical Equations and Atomic and Molecular Mass
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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 atom...(more details)
 
Solution Stoichiometry
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In this program, stoichiometry goes swimming. The topics of molarity, dilution, acid/base reactions, titration, limiting reagents, and yield-theoretical, actual, and percent-are all carefully examined. Practical problems involving the Molarity Equati...(more details)
 


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