Chapter 3 - Practice problems - Answers

Given a molecule with the empirical formula ch 2o and

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Unformatted text preview: d a molar mass of 90.0777 g/mol, what is its molecular formula? Determine the molar mass of the empirical formula fragment Divide the molar mass of the full compound by the molar mass of the empirical formula fragment Multiply the subscript for each element in the empirical formula by this factor to get the molecular formula: C3H6O3 Biologically relevant elements 38. List the four elements that are considered to be the building block elements of the body. Hydrogen, oxygen, carbon and nitrogen...
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This document was uploaded on 02/28/2014 for the course CHEMISTRY 116 at University of Alabama at Birmingham.

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