In chemistry, the empirical formula of a chemical compound is the simplest positive integer ratio of atoms present in a compound. A simple example of this concept is that the empirical formula of sulfur monoxide, or SO, would simply be SO, as is the empirical formula of disulfur dioxide, S O. This means that sulfur monoxide and disulfur dioxide, both compounds of sulfur and oxygen, will have the same empirical formula. However, their chemical formulas, which express the number of atoms in each molecule of a chemical compound, may not be the same.\n\nAnswer this question based on the passage: what is the empirical formula of a compound?
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This is the relevant information: In chemistry, the empirical formula of a chemical compound is the simplest positive integer ratio of atoms present in a compound.
So, the answer is the simplest positive integer ratio of atoms present in a compound.
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