The molecular weight of Acetaldehyde (CH3CHO) is 44.0528.
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: Acetaldehyde (CH3CHO) Molecular Weight Calculation
Step 1: Find out the chemical formula and determine constituent atoms and their number in a Acetaldehyde molecule.
From the chemical formula, you will know different atoms and their number in a Acetaldehyde molecule. Chemical formula of Acetaldehyde is C2H4O. From the chemical formula of Acetaldehyde, you can find that one molecule of Acetaldehyde has two Carbon (C) atoms, four Hydrogen (H) atoms and one Oxygen (O) atom.
Step 2: Find out atomic weights of each atom (from periodic table).
Step 3: Calculate the total weight of each atom present in a Acetaldehyde molecule by multiplying its atomic weight by its number.
Number of Carbon atoms in Acetaldehyde: 2
Atomic weight of Carbon: 12.0107
Total weight of Carbon atoms in Acetaldehyde: 12.0107 x 2 = 24.0214
Number of Hydrogen atoms in Acetaldehyde: 4
Atomic weight of Hydrogen: 1.008
Total weight of Hydrogen atoms in Acetaldehyde: 1.008 x 4 = 4.032
Number of Oxygen atoms in Acetaldehyde: 1
Atomic weight of Oxygen: 15.9994
Total weight of Oxygen atoms in Acetaldehyde: 15.9994 x 1 = 15.9994
Step 4: Calculate the molecular weight of Acetaldehyde by adding up the total weight of all atoms.
Molecular weight of Acetaldehyde: 24.0214 (Carbon) + 4.032 (Hydrogen) + 15.9994 (Oxygen) = 44.0528
So the molecular weight of Acetaldehyde is 44.0528.
Acetaldehyde (CH3CHO) Molecular Weight Calculation
|Molecular weight of Acetaldehyde|
|Constituent atoms||Number of each atom||Atomic weight||Total weight |
|Molecular weight of Acetaldehyde:||44.0528|
- 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