The molecular weight of Monocrotophos (ADP) [C₇H₁₄NO₅P] is 223.164402.

Monocrotophos (C₇H₁₄NO₅P) is an organic compound of five elements: Carbon, Hydrogen, Nitrogen, Oxygen, and Phosphorus. The molecular weight of Monocrotophos is 223.164402 which can be calculated by adding up the total weight (atomic weight multiplied by their number) of all its elements.

CALCULATION PROCEDURE: Monocrotophos  [C₇H₁₄NO₅P] Molecular Weight Calculation

Step 1: Find the chemical formula and determine constituent atoms and their number in a Monocrotophos molecule.
You will know different atoms and their number in a Monocrotophos molecule from the chemical formula. The chemical formula of Monocrotophos is C₇H₁₄NO₅P. From the chemical formula, you can find that one molecule of Monocrotophos consists of seven Carbon (C) atoms, fourteen Hydrogen (H) atoms, one Nitrogen (N) atom, five Oxygen atoms, and one Phosphorus (P) 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)
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 an Monocrotophos molecule by multiplying its atomic weight by its number.

Number of Carbon atoms in Monocrotophos: 7
Atomic weight of Carbon (C): 12.0107
Total weight of Carbon atoms in Monocrotophos: 12.0107 x 7 = 84,0749

Number of Hydrogen atoms in Monocrotophos: 14
Atomic weight of Hydrogen (H): 1.008
Total weight of Hydrogen atoms in Monocrotophos: 1.008 x 14 = 14.112

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

Number of Oxygen atoms in Monocrotophos: 5
Atomic weight of Oxygen (O): 15.9994
Total weight of Oxygen atoms in Monocrotophos: 15.9994 x 5 = 79.997

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

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

Molecular weight of Monocrotophos: 84,0749 (Carbon) + 14.112 (Hydrogen) + 14.00674 (Nitrogen) + 79.997 (Oxygen) + 30.973761998 (Phosphorus) = 223.164402

So the molecular weight of Monocrotophos is 223.164402.

Monocrotophos [C₇H₁₄NO₅P] 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
•  Jlab-ele015: https://education.jlab.org/itselemental/ele016.html
  

See also:

• Hydrogen chloride molecular weight calculation