STEP 1 - Assume a 100 g sample of the compound., STEP 2 - Convert the percent composition of each element to mass in grams., STEP 3 - Convert the mass of each element to moles by dividing the mass by the molar mass., STEP 4 - Divide the number of moles of each element by the smallest number of moles obtained in the previous step., STEP 5 - Determine the empirical formula., STEP 6 - Calculate the molar mass of the empirical formula, STEP 7 - Divide the given molar mass by the empirical formula mass to find the multiplication factor (m)., STEP 8 - Multiply the subscripts in the empirical formula by this multiplication factor (m) to get the molecular formula., STEP 9 - Write the molecular formula of the unknown compound.,

Steps in Calculating Molecular Formula

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