Applying Concepts
These questions test conceptual learning.
A substance is analyzed and found to contain 85.7% carbon and 14.3% hydrogen by weight. A gaseous sample of the substance is found to have a density of 1.87 g/L, and 1 mol of it occupies a volume of 22.4 L. What are two possible Lewis structures for molecules of the compound? (Hint: First determine the empirical formula and molar mass of the substance.)
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