The molecular weight of Arsenic triphosphide [AsP₃] is 167.842880994.

Arsenic triphosphide [AsP₃] is an inorganic compound of two elements: Arsenic (As)  and Phosphorus (P). The molecular weight of Arsenic triphosphide is 167.842880994 which can be calculated by adding up the total weight (atomic weight multiplied by their number) of all its elements.

CALCULATION PROCEDURE: Arsenic triphosphide [AsP₃] Molecular Weight Calculation

Step 1: Find out the chemical formula and determine constituent atoms and their number in an Arsenic triphosphide molecule.
From the chemical formula, you will know different atoms and their number in an Arsenic triphosphide molecule. The chemical formula of Arsenic triphosphide is AsP₃. From the chemical formula, you can find that one molecule of Arsenic triphosphide consists of one Arsenic (As) atom and three Phosphorus (P) atoms.

Step 2: Find out the atomic weights of each atom (from the periodic table).

Atomic weight of Arsenic (As): 74.921595 (Ref: Jlab-ele033, ciaaw-arsenic)
Atomic weight of Phosphorus (P): 30.973761998 (Ref: Jlab-ele015)

Step 3: Calculate the molecular weight of Arsenic triphosphide by adding the total weight of all atoms.

Number of Arsenic atoms in Arsenic triphosphide: 1
Atomic weight of Arsenic: 74.921595
Total weight of Arsenic atoms in Arsenic triphosphide: 74.921595 x 1 = 74.921595

Number of Phosphorus (P) atoms in Arsenic triphosphide: 3
Atomic weight of Phosphorus: 30.973761998
Total weight of Phosphorus atoms in Arsenic triphosphide: 30.973761998 x 3 = 92.921285994

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

Molecular weight of Arsenic triphosphide: 74.921595 (Arsenic) + 92.921285994 (Phosphorus) = 167.842880994

So the molecular weight of Arsenic triphosphide is 167.842880994.

Arsenic triphosphide [AsP₃] Molecular Weight Calculation

REFERENCES:

• Jlab-ele033: https://education.jlab.org/itselemental/ele033.html
• ciaaw-arsenic: https://www.ciaaw.org/arsenic.htm
• Jlab-ele015: https://education.jlab.org/itselemental/ele015.html

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