To find the molar mass of ethylene (C₂H₄), you sum the atomic masses of each atom in the molecule as found on the periodic table.
Here's the breakdown:
- Ethylene Formula: C₂H₄
- Atomic mass of Carbon (C): 12.01 amu (atomic mass units)
- Atomic mass of Hydrogen (H): 1.01 amu
Calculation:
- Carbon: 2 atoms * 12.01 amu/atom = 24.02 amu
- Hydrogen: 4 atoms * 1.01 amu/atom = 4.04 amu
- Total (Molar Mass): 24.02 amu + 4.04 amu = 28.06 amu
Therefore, the molar mass of ethylene (C₂H₄) is approximately 28.06 g/mol (grams per mole). The units are changed from amu to g/mol when referring to molar mass.
