Question

A sample of propane, C3H8, contains 17.0 moles of carbon atoms. How many total moles of atoms does the sample contain

Answer 1

Answer:

The answer is "62.33 mol atoms".

Explanation:

In the propane molecule, it  includes 8 atoms of Hydrogen for every 3 atoms of Carbon or 8 mol Hydrogen atoms for each of the 3 mol Carbon  atoms.

$\text{H atoms mole}= 17.0 \ \text{mols of C atoms} \times \frac{8 \text{mol H atoms}}{3 \text{mol H atoms}} =45.33\ \text{mol H atoms}$

Total atoms = 17.0 mols of C atoms +45.33 mols of H atoms

                    =62.33 mol atoms