The molecular weight of Terbufos [C₉H₂₁O₂PS₃] is 288.434862.

Terbufos (C₉H₂₁O₂PS₃) is an organic compound of five elements: Carbon, Hydrogen, Oxygen, Phosphorus, and Sulfur. The molecular weight of Terbufos is 288.434862 which can be calculated by adding up the total weight (atomic weight multiplied by their number) of all its elements.

CALCULATION PROCEDURE: Terbufos  [C₉H₂₁O₂PS₃] Molecular Weight Calculation

Step 1: Find out the chemical formula and determine constituent atoms and their number in a Terbufos molecule.
You will know different atoms and their number in a Terbufos molecule from the chemical formula. The chemical formula of Terbufos is C₉H₂₁O₂PS₃. From the chemical formula, you can find that one molecule of Terbufos consists of nine Carbon (C) atoms, twenty-one Hydrogen (H) atoms, two Oxygen atoms, one Phosphorus (P) atom, and three Sulfur (S) 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)
Atomic weight of Sulfur (S): 32.066 (Ref: Jlab-ele016)
Atomic weight of Oxygen (O): 15.9994 (Ref: Jlab-ele008)
Atomic weight of Phosphorus (P): 30.973761998 (Ref: Jlab-ele015)

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

Number of Carbon atoms in Terbufos: 9
Atomic weight of Carbon (C): 12.0107
Total weight of Carbon atoms in Terbufos: 12.0107 x 9 = 108.0963

Number of Hydrogen atoms in Terbufos: 21
Atomic weight of Hydrogen (H): 1.008
Total weight of Hydrogen atoms in Terbufos: 1.008 x 21 = 21.168

Number of Oxygen atoms in Terbufos: 2
Atomic weight of Oxygen (O): 15.9994
Total weight of Oxygen atoms in Terbufos: 15.9994 x 2 = 31.9988

Number of Phosphorus atoms in Terbufos: 1
Atomic weight of Phosphorus (P): 30.973761998
Total weight of Phosphorus atoms in Terbufos: 30.973761998 x 1 = 30.973761998

Number of Sulfur atoms in Terbufos: 3
Atomic weight of Sulfur (S): 32.066
Total weight of Sulfur atoms in Terbufos: 32.066 x 3 = 96.198

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

Molecular weight of Terbufos: 108.0963 (Carbon) + 21.168 (Hydrogen) + 31.9988 (Oxygen) + 30.973761998 (Phosphorus) + 96.198 (Sulfur) = 288.434862

So the molecular weight of Terbufos is 288.434862.

Terbufos [C₉H₂₁O₂PS₃] Molecular Weight Calculation

REFERENCES:

• Lanl-1: https://periodic.lanl.gov/1.shtml 
• Jlab-ele006: https://education.jlab.org/itselemental/ele006.html 
• Jlab-ele008: https://education.jlab.org/itselemental/ele008.html
• Jlab-ele016: https://education.jlab.org/itselemental/ele016.html 
• Jlab-ele015: https://education.jlab.org/itselemental/ele016.html
  

See also:

• Hydrogen chloride molecular weight calculation