The molecular weight of Heptane (C7H16) is 100.2029.
Heptane (C7H16) is an organic compound of two elements: Carbon, and Hydrogen. The molecular weight of Heptane is 100.2029 which can be calculated by adding up the total weight (atomic weight multiplied by their number) of all its elements.
CALCULATION PROCEDURE: Heptane [C7H16] Molecular Weight Calculation
Step 1: Find the chemical formula and determine constituent atoms and their number in a Heptane molecule.
You will know different atoms and their number in a Heptane molecule from the chemical formula. The chemical formula of Heptane is C7H16. The chemical formula shows that one Heptane molecule consists of seven Carbon (C) atoms and sixteen Hydrogen (H) atoms.
Step 2: Find out the atomic weights of each atom (from the periodic table).
Atomic weight of Carbon (C): 12.0107 (Ref: Jlab-ele006)
Atomic weight of Hydrogen (H): 1.008 (Ref: Lanl-1)
Step 3: Calculate the total weight of each atom in a Heptane molecule by multiplying its atomic weight by its number.
Number of Carbon atoms in Heptane: 7
Atomic weight of Carbon (C): 12.0107
Total weight of Carbon atoms in Heptane: 12.0107 x 7 = 84.0749
Number of Hydrogen atoms in Heptane: 16
Atomic weight of Hydrogen (H): 1.008
Total weight of Hydrogen atoms in Heptane: 1.008 x 16 = 16.128
Step 4: Calculate the molecular weight of Heptane by adding up the total weight of all atoms.
Molecular weight of Heptane: 84.0749 (Carbon) + 16.128 (Hydrogen) = 100.2029
So the molecular weight of Heptane is 100.2029.
Heptane [C7H16] Molecular Weight Calculation
|Molecular weight of Heptane [C7H16]|
|Constituent atoms||Number of each atom||Atomic weight||Total weight|
|Molecular weight of Heptane [C7H16]:||100.2029|
- Lanl-1: https://periodic.lanl.gov/1.shtml
- Jlab-ele006: https://education.jlab.org/itselemental/ele006.html