# Maleic Acid (HO2CCHCHCO2H) Molecular Weight Calculation

The molecular weight of Maleic acid (HO2CCHCHCO2H) is 116.0724. 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: Maleic acid (HO2CCHCHCO2H) Molecular Weight Calculation

Step 1: Find out the chemical formula and determine constituent atoms and their number in a Maleic acid molecule.
From the chemical formula, you will know different atoms and their number in a Maleic acid molecule. Chemical formula of Maleic acid is C4H4O4. From the chemical formula of Maleic acid, you can find that one molecule of Maleic acid has four Carbon (C) atoms, four Hydrogen (H) atoms and four 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 Maleic acid molecule by multiplying its atomic weight by its number.

Number of Carbon atoms in Maleic acid: 4
Atomic weight of Carbon: 12.0107
Total weight of Carbon atoms in Maleic acid: 12.0107 x 4 = 48.0428

Number of Hydrogen atoms in Maleic acid: 4
Atomic weight of Hydrogen: 1.008
Total weight of Hydrogen atoms in Maleic acid: 1.008 x 4 = 4.032

Number of Oxygen atoms in Maleic acid: 4
Atomic weight of Oxygen: 15.9994
Total weight of Oxygen atoms in Maleic acid: 15.9994 x 4 = 63.9976

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

Molecular weight of Maleic acid: 48.0428 (Carbon) + 4.032 (Hydrogen) + 63.9976 (Oxygen) = 116.0724

So the molecular weight of Maleic acid is 116.0724.

Maleic acid (HO2CCHCHCO2H) 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 