Calculating Empirical and Molecular Formulas

There are similarities between empirical and molecular formulas. Empirical formulas represent the lowest whole number ratio of elements in a compound, while molecular formulas represent the actual ratio of elements in a compound. View this presentation to learn more about empirical and molecular formulas, including how to determine an empirical formula based on the percent composition of the elements, and how to determine the molecular formula given the molar mass.

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Determining Empirical and Molecular Formulas Review

Now that you have examined how to determine empirical and molecular formulas, complete this non-graded activity. Read each question and select the correct response. Then, click SUBMIT to check your answer. Click the interactivity thumbnail and then click NEXT to get started.