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Learn how to find the empirical formula easily with these steps: convert mass into grams, then into moles, divide by smallest number of moles, and multiply to get the formula.
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Empirical Formula1. Turn % by mass into grams by assuming a 100 g sample.2. Turn grams of each element into moles of the element by dividing by atomic mass.3. Divide the moles of each element by the smallest number of moles.4. Determine the empirical formula by multiplying each result by the appropriate integer.