The molar mass of C3H8 (propane) is calculated by adding the atomic masses of all the atoms in the molecule.
– Carbon (C) has an atomic mass of approximately 12.01 g/mol.
– Hydrogen (H) has an atomic mass of approximately 1.01 g/mol.
In C3H8, there are 3 carbon atoms and 8 hydrogen atoms.
To calculate the molar mass:
1. Multiply the atomic mass of carbon by the number of carbon atoms: 3 × 12.01 g/mol = 36.03 g/mol.
2. Multiply the atomic mass of hydrogen by the number of hydrogen atoms: 8 × 1.01 g/mol = 8.08 g/mol.
3. Add the two results together: 36.03 g/mol + 8.08 g/mol = 44.11 g/mol.
Therefore, the molar mass of C3H8 is 44.11 g/mol.