Inspection shows that it is balanced as written, so the strategy outlined above can be adapted as follows:ġ. can by written by the equation of stoichiometry: CmHn + (m + n/4)O 2 mCO 2 + n/2H 2O 1 mol + (m + n/4)moles (m +n/2)moles This is an equation of stoichiometry of combustion. The initial step in solving a problem of this type is to write the balanced chemical equation for the reaction. Stoichiometry of chemical reactions means that species react. 4.25: Stoichiometry: Introduction and Indicators is shared under a not declared license and was authored, remixed, and/or curated. If a typical 2 oz candy bar contains the equivalent of 45.3 g of glucose and the glucose is completely converted to carbon dioxide during the exam, how many grams of carbon dioxide will you produce and exhale into the exam room? Because both of the chemicals that are referenced in the question, O 2 and H 2 O 2, are also present in the given reaction equation, a stoichiometric equality should be developed and applied when solving the problem. You therefore decide to eat a candy bar to make sure that your brain does not run out of energy during the exam (even though there is no direct evidence that consumption of candy bars improves performance on chemistry exams). Just before a chemistry exam, suppose a friend reminds you that glucose is the major fuel used by the human brain.
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