The molecular weight of Methylene Glycol (CH2(OH)2) is 48.0415.
To calculate molecular weight of any compound, the first step is to know the constituent atoms and their number in that particular compound. Then calculate the total weight of each atom by multiplying its atomic weight by its number. The sum of total weight of all constituent atoms will be the molecular weight of the compound. Note that the value of atomic weight may differ slightly from different sources.
CALCULATION PROCEDURE: Methylene Glycol (CH2(OH)2) Molecular Weight Calculation
Step 1: Find out the chemical formula and determine constituent atoms and their number in a Methylene Glycol molecule.
From the chemical formula, you will know different atoms and their number in a Methylene Glycol molecule. Chemical formula of Methylene Glycol is CH4O2. From the chemical formula of Methylene Glycol, you can find that one molecule of Methylene Glycol has one Carbon (C) atom, four Hydrogen (H) atoms 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 Oxygen (O) : 15.9994 (Ref: Jlab-ele008)
Step 3: Calculate the total weight of each atom present in a Methylene Glycol molecule by multiplying its atomic weight by its number.
Number of Carbon atoms in Methylene Glycol: 1
Atomic weight of Carbon: 12.0107
Total weight of Carbon atoms in Methylene Glycol: 12.0107 x 1 = 12.0107
Number of Hydrogen atoms in Methylene Glycol: 4
Atomic weight of Hydrogen: 1.008
Total weight of Hydrogen atoms in Methylene Glycol: 1.008 x 4 = 4.032
Number of Oxygen atoms in Methylene Glycol: 2
Atomic weight of Oxygen: 15.9994
Total weight of Oxygen atoms in Methylene Glycol: 15.9994 x 1 = 31.9988
Step 4: Calculate the molecular weight of Methylene Glycol by adding up the total weight of all atoms.
Molecular weight of Methylene Glycol: 12.0107 (Carbon) + 4.032 (Hydrogen) + 31.9988 (Oxygen) = 48.0415
So the molecular weight of Methylene Glycol is 48.0415.
Methylene Glycol (CH2(OH)2) Molecular Weight Calculation
| Molecular weight of Methylene Glycol | |||
| Constituent atoms | Number of each atom | Atomic weight | Total weight |
| Carbon (C) | 1 | 12.0107 | 12.0107 |
| Hydrogen (H) | 4 | 1.008 | 4.032 |
| Oxygen (O) | 2 | 31.9988 | 31.9988 |
| Molecular weight of Methylene Glycol: | 48.0415 | ||
REFERENCES:
- Lanl-1: https://periodic.lanl.gov/1.shtml
- Pubchem-Hydrogen : https://pubchem.ncbi.nlm.nih.gov/element/Hydrogen
- Jlab-ele006; https://education.jlab.org/itselemental/ele006.html
- Pubchem-6: https://pubchem.ncbi.nlm.nih.gov/element/6
- Jlab-ele008: https://education.jlab.org/itselemental/ele008.html
- Pubchem-8: https://pubchem.ncbi.nlm.nih.gov/element/8
