Ethanolamine [HOCH2CH2NH2] Molecular Weight Calculation

The molecular weight of Ethanolamine [HOCH2CH2NH2] is 61.08354.

Ethanolamine [HOCH2CH2NH2] Molecular Weight CalculationEthanolamine (HOCH2CH2NH2) is an organic compound of five 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.
From the chemical formula, you will know different atoms and their number in an Ethanolamine molecule. The chemical formula of Ethanolamine is HOCH2CH2NH2. From the chemical formula of Ethanolamine, 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 Alanine 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

Molecular weight of Ethanolamine [HOCH2CH2NH2]
Constituent atomsNumber of each atom
Atomic weight
Total weight
Carbon (C)
3
12.0107
36.0321
Hydrogen (H)
7
1.008
7.056
Nitrogen (N)114.0067414.00674
Oxygen (O)2
15.999431.9988
Molecular weight of Ethanolamine [HOCH2CH2NH2]:
61.08354

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:

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