The molecular weight of 2,6-Dichloropyridine-3-carboxylic acid (C₆H₃Cl₂NO₂) is 191.99914.

2,6-Dichloropyridine-3-carboxylic acid (C₆H₃Cl₂NO₂) is an organic compound of five elements: Carbon, Hydrogen, Chlorine, Nitrogen, and Oxygen. The molecular weight of 2,6-Dichloropyridine-3-carboxylic acid is 191.99914 which can be calculated by adding up the total weight (atomic weight multiplied by their number) of all its elements.

CALCULATION PROCEDURE: 2,6-Dichloropyridine-3-carboxylic acid  [C₆H₃Cl₂NO₂] Molecular Weight Calculation

Step 1: Find out the chemical formula and determine constituent atoms and their number in a 2,6-Dichloropyridine-3-carboxylic acid molecule.
You will know different atoms and their number in a 2,6-Dichloropyridine-3-carboxylic acid molecule from the chemical formula. The chemical formula of 2,6-Dichloropyridine-3-carboxylic acid is C₆H₃Cl₂NO₂. From the chemical formula, you can find that one molecule of 2,6-Dichloropyridine-3-carboxylic acid consists of six Carbon (C) atoms, three Hydrogen (H) atoms, two Chlorine atoms, one Nitrogen (N) atom, and two Oxygen 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 Chlorine (Cl): 35.4527 (Ref: jlab-ele017)
Atomic weight of Nitrogen (N): 14.00674 (Ref: Jlab-ele007)
Atomic weight of Oxygen (O): 15.9994 (Ref: Jlab-ele008)

Step 3: Calculate the total weight of each atom in a 2,6-Dichloropyridine-3-carboxylic acid molecule by multiplying its atomic weight by its number.

Number of Carbon atoms in 2,6-Dichloropyridine-3-carboxylic acid: 6
Atomic weight of Carbon (C): 12.0107
Total weight of Carbon atoms in 2,6-Dichloropyridine-3-carboxylic acid: 12.0107 x 6 = 72.0642

Number of Hydrogen atoms in 2,6-Dichloropyridine-3-carboxylic acid: 3
Atomic weight of Hydrogen (H): 1.008
Total weight of Hydrogen atoms in 2,6-Dichloropyridine-3-carboxylic acid: 1.008 x 3 = 3.024

Number of Chlorine atoms in 2,6-Dichloropyridine-3-carboxylic acid: 2
Atomic weight of Chlorine (Cl): 35.4527
Total weight of Chlorine atoms in 2,6-Dichloropyridine-3-carboxylic acid: 35.4527 x 2 = 70.9054

Number of Nitrogen atoms in 2,6-Dichloropyridine-3-carboxylic acid: 1
Atomic weight of Nitrogen (N): 14.00674
Total weight of Nitrogen atoms in 2,6-Dichloropyridine-3-carboxylic acid: 14.00674 x 1 = 14.00674

Number of Oxygen atoms in 2,6-Dichloropyridine-3-carboxylic acid: 2
Atomic weight of Oxygen (O): 15.9994
Total weight of Oxygen atoms in 2,6-Dichloropyridine-3-carboxylic acid: 15.9994 x 2 = 31.9988

Step 4: Calculate the molecular weight of 2,6-Dichloropyridine-3-carboxylic acid by adding up the total weight of all atoms.

Molecular weight of 2,6-Dichloropyridine-3-carboxylic acid: 72.0642 (Carbon) + 3.024 (Hydrogen) + 70.9054 (Chlorine) + 14.00674 (Nitrogen) + 31.9988 (Oxygen) = 191.99914

So the molecular weight of 2,6-Dichloropyridine-3-carboxylic acid is 191.99914.

2,6-Dichloropyridine-3-carboxylic acid [C₆H₃Cl₂NO₂] 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
• Jlab-ele008: https://education.jlab.org/itselemental/ele008.html
• Pubchem-Chlorine: https://pubchem.ncbi.nlm.nih.gov/element/Chlorine

See also:

• Hydrogen chloride molecular weight calculation