How to Calculate the Molar Mass of C2H6O (Ethanol)

To calculate the molar mass of ethanol (C₂H₆O), you need to sum the atomic masses of all the atoms in the molecule. Here’s how you can do it:

1. Identify the number of each type of atom in the molecule:
   • Carbon (C): 2 atoms
   • Hydrogen (H): 6 atoms
   • Oxygen (O): 1 atom
2. Find the atomic masses of each element:
   • Carbon (C): 12.01 g/mol
   • Hydrogen (H): 1.008 g/mol
   • Oxygen (O): 16.00 g/mol
3. Calculate the total mass for each element:
   • Carbon: 2 atoms × 12.01 g/mol = 24.02 g/mol
   • Hydrogen: 6 atoms × 1.008 g/mol = 6.048 g/mol
   • Oxygen: 1 atom × 16.00 g/mol = 16.00 g/mol
4. Sum the masses to get the molar mass of ethanol:
   • 24.02 g/mol (Carbon) + 6.048 g/mol (Hydrogen) + 16.00 g/mol (Oxygen) = 46.068 g/mol

Therefore, the molar mass of ethanol (C₂H₆O) is approximately 46.07 g/mol.