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Problem 45

A chloride of silicon contains 79.1 mass $\% \mat…

The University of Alabama

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Problem 44

An oxide of nitrogen contains 30.45 mass $\% \mathrm{N}$ . (a) What is the empirical formula of the oxide? (b) If the molar mass is $90 \pm 5 \mathrm{g} / \mathrm{mol},$ what is the molecular formula?

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Chapter 3
Stoichiometry of Formulas and Equations
CHEMISTRY: The Molecular Nature of Matter and Change 2016