The molecular weight of Ethanolamine [HOCH₂CH₂NH₂] is 61.08354.

Ethanolamine (HOCH₂CH₂NH₂) is an organic compound of four elements: Carbon, Hydrogen, Nitrogen, and Oxygen. The molecular weight of Ethanolamine is 61.08354 which can be calculated by adding up the total weight (atomic weight multiplied by their number) of all its elements.

CALCULATION PROCEDURE: Ethanolamine  [HOCH₂CH₂NH₂] Molecular Weight Calculation

Step 1: Find out the chemical formula and determine constituent atoms and their number in an Ethanolamine molecule.
You will know different atoms and their number in an Ethanolamine molecule from the chemical formula. The chemical formula of Ethanolamine is HOCH₂CH₂NH₂. From the chemical formula, you can find that one molecule of Ethanolamine consists of two Carbon (C) atoms, seven Hydrogen (H) atoms, one Nitrogen (N) atom, and one 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 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 an Ethanolamine molecule by multiplying its atomic weight by its number.

Number of Carbon atoms in Ethanolamine: 2
Atomic weight of Carbon (C): 12.0107
Total weight of Carbon atoms in Ethanolamine: 12.0107 x 2 = 24.0214

Number of Hydrogen atoms in Ethanolamine: 7
Atomic weight of Hydrogen (H): 1.008
Total weight of Hydrogen atoms in Ethanolamine: 1.008 x 7 = 7.056

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

Number of Oxygen atoms in Ethanolamine: 1
Atomic weight of Oxygen (O): 15.9994
Total weight of Oxygen atoms in Ethanolamine: 15.9994 x 1 = 15.9994

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

Molecular weight of Ethanolamine: 24.0214 (Carbon) + 7.056 (Hydrogen) + 14.00674 (Nitrogen) + 15.9994 (Oxygen) = 61.08354

So the molecular weight of Ethanolamine is 61.08354.

Ethanolamine [HOCH₂CH₂NH₂] 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
  

See also:

• Hydrogen chloride molecular weight calculation