The molecular weight of Potassium 2-ethylhexanoate (C₈H₁₅KO₂) is 182.3027.

Potassium 2-ethylhexanoate (C₈H₁₅KO₂) is an organic compound of four elements: Carbon, Hydrogen, Potassium, and Oxygen. The molecular weight of Potassium 2-ethylhexanoate is 182.3027 which can be calculated by adding up the total weight (atomic weight multiplied by their number) of Carbon, Hydrogen, Potassium, and Oxygen.

To calculate molecular weight of any compound, the first step is to know the constituent elements (atoms) and their number in that particular compound. Then calculate the total atomic weight of each element by multiplying its atomic weight by its number. The sum of total atomic weight of all constituent elements will be the molecular weight of the compound. Note that the value of atomic weight may differ from different sources.

CALCULATION PROCEDURE: Potassium 2-ethylhexanoate [C₈H₁₅KO₂] Molecular Weight Calculation

Step 1: Find out the chemical formula and determine constituent atoms and their number in a Potassium 2-ethylhexanoate molecule.
From the chemical formula, you will know different atoms and their number in a Potassium 2-ethylhexanoate molecule. Chemical formula of Potassium 2-ethylhexanoate is C₈H₁₅KO₂. From the chemical formula of Potassium 2-ethylhexanoate, you can find that one molecule of Potassium 2-ethylhexanoate has eight Carbon atoms, 15 hydrogen atoms, one Potassium (K) atom, and two Oxygen (O) atoms.

Step 2: Find out atomic weights of each atom (from 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 Potassium (K): 39.0983 (Ref: Ciaaw-potassium)
Atomic weight of Oxygen (O) : 15.9994 (Ref: Jlab-ele008)

Step 3: Calculate the molecular weight of Potassium 2-ethylhexanoate by adding the total weight of all atoms.

Number of Carbon (C) atoms in Potassium 2-ethylhexanoate: 8
Atomic weight of Carbon: 12.0107
Total weight of Manganese atoms in Potassium 2-ethylhexanoate: 12.0107 x 8 = 96.0856

Number of Hydrogen (H) atoms in Potassium 2-ethylhexanoate: 15
Atomic weight of Hydrogen: 1.008
Total weight of Manganese atoms in Potassium 2-ethylhexanoate: 1.008 x 15 = 15.12

Number of Potassium atoms in Potassium 2-ethylhexanoate: 1
Atomic weight of Potassium: 39.0983
Total weight of Potassium atoms in Potassium 2-ethylhexanoate: 39.0983 x 1 = 39.0983

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

Step 4: Calculate the molecular weight of Potassium 2-ethylhexanoate by adding up the total weight of all atoms.

Molecular weight of Potassium 2-ethylhexanoate : 96.0856 (Carbon) + 15.12 (Hydrogen) + 39.0983 (Potassium) +  31.9988 (Oxygen) 

So the molecular weight of Potassium 2-ethylhexanoate is 182.3027.

Potassium 2-ethylhexanoate [C₈H₁₅KO₂] Molecular Weight Calculation

REFERENCES:

• Lanl-1: https://periodic.lanl.gov/1.shtml 
• Jlab-ele006; https://education.jlab.org/itselemental/ele006.html
• Ciaaw-potassium : https://www.ciaaw.org/potassium.htm
• Jlab-ele008: https://education.jlab.org/itselemental/ele008.html

See also:

• Hydrogen chloride molecular weight calculation