Question 4.1: Drawing a Structural Formula Propane, C3H8, has a structure ......

General Chemistry: Atoms First [1015060]

Drawing a Structural Formula

Propane, $C_3H_8$ , has a structure in which the three carbon atoms are bonded in a row, each end carbon is bonded to three hydrogens, and the middle carbon is bonded to two hydrogens. Draw the structural formula.

STRATEGY

Think of a compound’s structural formula as a sketch that shows which atoms are bonded to one another. If bonding information is provided—perhaps by a molecular model—the structural formula is written using lines to represent covalent bonds.

Step-by-Step

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H-\overset{\overset{H}{|}}{\underset{\underset{H}{|}}{C} } – \overset{\overset{H}{|}}{\underset{\underset{H}{|}}{C} } – \overset{\overset{H}{|}}{\underset{\underset{H}{|}}{C} } -H

Propane

worked example 4.1

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