However, we can have any number of moles of reactants, and, using stoichiometry (the ratio of the components), we can calculate how much products can be obtained.įor example, let’s determine how much CO 2 will be formed from 3.0 moles of C 2H 5OH by the following combustion reaction: So, the coefficients show the ratio of the reaction components which is like the recipe of the reaction. ![]() Molar level: The coefficients in blue indicate, for example, that 1 mole of C 2H 5OH reacts with 3 moles of O 2 producing 2 moles of CO 2 and 3 moles of H 2O.Īt the molecular level, it tells us that 1 molecule of C 2H 5OH reacts with 3 molecules of O 2 producing 2 molecules of CO 2 and 3 molecules of H 2O. For example, the following equation shows the combustion reaction of ethanol (C 2H 5OH) producing carbon dioxide (CO 2) and water (H 2O): It allows calculating the amount of any component of a chemical reaction if one of them is given using the mole method.Ī chemical equation can be interpreted at molecular and molar levels. ![]() In a chemical reaction, stoichiometry shows the mole-ratio of the reactants and products based on the coefficients which are written before them.
0 Comments
Leave a Reply.AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |