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This Concept Map, created with IHMC CmapTools, has information related to: Apologia, ed 1, Module 6 Concept Map, Empirical Formula is the relative number of moles of elements in a compound using the smallest whole numbers, Determine the molecular mass in grams then Divide the molecular mass of the compound by the molecular mass of the empirical formula, the actual number of atoms of each element making up a molecule is the most exact formula with number of atoms of all of the elements in one molecule, Round the quotient to the closest integer then Multiply the rounded whole number by all the subscripts. The result is the new molecular formula, Normalize the subscripts by dividing through by the smallest number of moles then Round up the fractional to whole numbers, Calculate the moles for each element by dividing its weight from previous step by its atomic weight then Set up a formula with the number of moles of each element as subscripts, Set up a formula with the number of moles of each element as subscripts then Normalize the subscripts by dividing through by the smallest number of moles, Determine the percent composition of each element then Assume 100 grams of sample which automatically converts percent from the previous step to grams, Molecular Formula how to determine it Pre-requisite: empirical formula must be known, Determination of a formula is the most basic and frequent calculation in chemistry either Molecular Formula, Determination of a formula is the most basic and frequent calculation in chemistry either Empirical Formula, Pre-requisite: empirical formula must be known then Determine the molecular mass in grams, Divide the molecular mass of the compound by the molecular mass of the empirical formula then Round the quotient to the closest integer, Assume 100 grams of sample which automatically converts percent from the previous step to grams then Calculate the moles for each element by dividing its weight from previous step by its atomic weight, Empirical Formula how to determine it Determine the percent composition of each element, the relative number of moles of elements in a compound using the smallest whole numbers is the most simple formula, Molecular Formula is the actual number of atoms of each element making up a molecule