How to do Stoichiometry
This guide explores stoichiometry by calculating the required grams of Silicon Chloride (SiCl4) and Water (H2O) needed to produce 7.25g of Hydrochloric Acid (HCl) from the balanced chemical equation SiCl4 + 2H2O → SiO2 + 4HCl. It details the steps to convert grams to moles, find the mole ratios for all chemicals involved, and ensure mass conservation. By applying these principles, students will grasp the relationships between reactants and products in chemical reactions, enhancing their understanding of stoichiometric calculations.
How to do Stoichiometry
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Presentation Transcript
How to do Stoichiometry By:Peter Greenawalt
The Reaction • How many grams of Silicon Chloride and Water are needed to produce 7.25g of Hydrochloric acid? • SiCl4 + H2O SiO2 + HCl
Write a complete and balanced chemical equation SiCl4 + 2H2O SiO2 + 4HCl
Draw a column after each chemical SiCl4 + 2H2O SiO2 + 4HCl
Write the amount given in the correct columnSiCl4 + 2H2O SiO2 + 4HCl
Convert the amount given into MolesSiCl4 + 2H2O SiO2 + 4HCl
Find Moles for all the other Chemicalsa)In each of the other columns write moles given (x) as a fractionSiCl4 + 2H2O SiO2 + 4HCl
Find Moles for all the other Chemicalsb)the numerator of the fraction is the coefficient of the columnSiCl4 + 2H2O SiO2 + 4HCl
Find Moles for all the other Chemicalsc)the denominator of the fraction is the coefficient of the given columnSiCl4 + 2H2O SiO2 + 4HCl
Find Moles for all the other Chemicalsd) Do the math and label as molesSiCl4 + 2H2O SiO2 + 4HCl
Verify the Law of Conservation of Mass(total mass of reactants=total mass of products) SiCl4 + 2H2O SiO2 + 4HCl
