Collections:Texts:Chemistry:Chapter 3 - Using Chemical Equations in Calculations

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USING CHEMICAL EQUATIONS IN CALCULATIONS

3.1 Equations and Mass Relationships

3.1.1. The Limiting Reagent

3.1.2. Percent Yield

3.2 Analysis of Compounds

3.3 Thermo-chemistry

3.3.1 Energy

3.3.2 Thermochemical Equations

3.3.3 Hess’ Law

3.4 Standard Enthalpies of Formation

3.5 Solutions

3.5.1 Concentration

3.5.2 Diluting and Mixing Solutions

3.5.3 Titrations

Summary 3

There are a great many circumstances in which you may need to use a balanced equation. For example, you might want to know how much air pollution would occur when 100 metric tons of coal were burned in an electric power plant, how much heat could be obtained from a kilogram of natural gas, or how much vitamin C is really present in a 300-mg tablet. In each instance someone else would probably have determined what reaction takes place, but you would need to use the balanced equation to get the desired information.

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