The molecular weight of Pyridine (C₅H₅N) is 79.10024.

Pyridine (C₅H₅N) is an organic compound of three elements: Carbon, Hydrogen, and Nitrogen. The molecular weight of Pyridine is 79.10024 which can be calculated by adding up the total weight (atomic weight multiplied by their number) of all its elements.

CALCULATION PROCEDURE: Pyridine  [C₅H₅N] Molecular Weight Calculation

Step 1: Find out the chemical formula and determine constituent atoms and their number in a Pyridine molecule.
You will know different atoms and their number in a Pyridine molecule from the chemical formula. The chemical formula of Pyridine is C₅H₅N. From the chemical formula, you can find that one molecule of Pyridine consists of five Carbon (C) atoms, five Hydrogen (H) atoms, and one Nitrogen (N) atom.

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)
Atomic weight of Nitrogen (N): 14.00674 (Ref: Jlab-ele007)

Step 3: Calculate the total weight of each atom in a Pyridine molecule by multiplying its atomic weight by its number.

Number of Carbon atoms in Pyridine: 5
Atomic weight of Carbon (C): 12.0107
Total weight of Carbon atoms in Pyridine: 12.0107 x 5 = 60.0535

Number of Hydrogen atoms in Pyridine: 5
Atomic weight of Hydrogen (H): 1.008
Total weight of Hydrogen atoms in Pyridine: 1.008 x 5 = 5.04

Number of Nitrogen atoms in Pyridine: 1
Atomic weight of Nitrogen (N): 14.00674
Total weight of Nitrogen atoms in Pyridine: 14.00674 x 1 = 14.00674

Step 4: Calculate the molecular weight of Pyridine by adding up the total weight of all atoms.

Molecular weight of Pyridine: 60.0535 (Carbon) + 5.04 (Hydrogen) + 14.00674 (Nitrogen) = 79.10024

So the molecular weight of Pyridine is 79.10024.

Pyridine [C₅H₅N] Molecular Weight Calculation

REFERENCES:

• Lanl-1: https://periodic.lanl.gov/1.shtml 
• Jlab-ele006: https://education.jlab.org/itselemental/ele006.html 
• Jlab-ele007: https://education.jlab.org/itselemental/ele007.html

See also:

• Hydrogen chloride molecular weight calculation