The molecular weight of gamma-Hydroxybutyraldehyde [HOCH₂CH₂CH₂CHO] is 88.1056.

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: gamma-Hydroxybutyraldehyde [HOCH₂CH₂CH₂CHO] Molecular Weight Calculation

Step 1: Find out the chemical formula and determine constituent atoms and their number in a gamma-Hydroxybutyraldehyde molecule.
From the chemical formula, you will know different atoms and their number in a gamma-Hydroxybutyraldehyde molecule. Chemical formula of gamma-Hydroxybutyraldehyde is C₄H₈O₂. From the chemical formula of gamma-Hydroxybutyraldehyde, you can find that one molecule of gamma-Hydroxybutyraldehyde has four Carbon (C) atoms, eight 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 gamma-Hydroxybutyraldehyde molecule by multiplying its atomic weight by its number.

Number of Carbon atoms in gamma-Hydroxybutyraldehyde: 4
Atomic weight of Carbon (C): 12.0107
Total weight of Carbon atoms in gamma-Hydroxybutyraldehyde: 12.0107 x 4 = 48.0428

Number of Hydrogen atoms in gamma-Hydroxybutyraldehyde: 8
Atomic weight of Hydrogen (H): 1.008
Total weight of Hydrogen atoms in gamma-Hydroxybutyraldehyde: 1.008 x 8 = 8.064

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

Step 4: Calculate the molecular weight of gamma-Hydroxybutyraldehyde by adding up the total weight of all atoms.

Molecular weight of gamma-Hydroxybutyraldehyde: 48.0428 (Carbon) + 8.064 (Hydrogen) + 31.9988 (Oxygen) = 88.1056

So the molecular weight of gamma-Hydroxybutyraldehyde is 88.1056.

gamma-Hydroxybutyraldehyde [HOCH₂CH₂CH₂CHO] Molecular Weight Calculation

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

See also:

• Apiose (C5H10O5) Molecular Weight Calculation