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## Chapter 11Stoichiometry: Calculations Based on Chemical Equations

11-01
 Title Road map to stoichiometric conversions Caption A road map to stoichiometric conversions. The diagram shows a "grams of A" to "grams of B" conversion sequence. Conversion factors are show alongside the arrows. Keywords stoichiometry, conversions, mole, mass, chemical reaction, road map
11-01-01UN
 Title Conversion of "grams A" to "grams B" Caption Diagram illustrating a "grams A" to "moles A" to "moles B" to "grams B" conversion sequence. The conversion factors are shown alongside the arrows. Keywords stoichiometry, conversions, mole, mass,
11-02
 Title Road map of stoichiometric conversions with molar concentrations Caption Stoichiometric conversions involving molar concentrations. The diagram shows the sequence of conversions needed for stoichiometric calculations when the one or both of the reacting chemicals is dissolved in water. Conversion factors are shown alongisde the arrows. Keywords stoichiometry, conversions, mole, mass, molarity, solution, chemical reaction, road map
11-04
 Title Limiting reactant Caption When you make sandwiches from bread, lunchmeat, and cheese, whichever one you run out of limits the number of sandwiches you can make - like the "limiting reactant" which controls the amount of products that can be formed during a chemical reaction. In this figure, bread is the "limiting reactant." Keywords limiting reactant, limiting reagent, stoiciometry
11-05
 Title Limiting reactant in the formation of ammonia Caption When ammonia is formed from a mixture of 1 N2 and 6 H2 molecules, all of the nitrogen is consumed when two molecules of ammonia are produced. The proportions are the same if we use moles. The amount of nitrogen limits the amount of ammonia that can be formed. Nitrogen is the limiting reactant. Hydrogen is present in excess. Keywords limiting reactant, nitrogen, hydrogen, ammonia, excess
11-06
 Title Energy level diagram for an exothermic reaction Caption The exothermic reaction of hydrogen gas with oxygen gas. The combustion of hydrogen is an exothermic reaction: )H=-283 kJ. The energy possessed by the product, water, is less than the energy of the reactants, so )H is negative. Keywords enthalpy, exothermic, energy level, combustion, oxygen gas, hydrogen gas, heat change
11-07
 Title Energy level diagram for endothermic reaction Caption The decomposition of water is an endothermic reaction: )H=+283 kJ. The energy possessed by the products is greater than the energy of the reactants, so )H is positive. When a direct current is used to supply the energy, the process is called electrolysis. Keywords enthalpy, endothermic, endergonic, energy level, decomposition, electrolysis, water, hydrogen oxygen, heat change

 Title Limiting Reagent Caption Keywords

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