# How many carbon atoms are in molecules of propane?

Mar 4, 2017

$3$ carbon atoms per molecule

#### Explanation:

The chemical formula for propane is ${C}_{3} {H}_{8}$
so there are
$\textcolor{w h i t e}{\text{XX}} 3$ carbon atoms and
$\textcolor{w h i t e}{\text{XX}} 8$ hydrogen atoms
per molecule

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If you are interested in the structure of propane:
$\textcolor{w h i t e}{\text{XX}} {H}_{3} C C {H}_{2} C {H}_{3}$
is probably a more exact representation
(but it still simplifies to a Carbon to Hydrogen molecular ratio of $3 : 8$)