The molecular weight of Apiose (C₅H₁₀O₅) is 150.1305.

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: Apiose (C₅H₁₀O₅) Molecular Weight Calculation

Step 1: Find out the chemical formula and determine constituent atoms and their number in a Apiose molecule.
From the chemical formula, you will know different atoms and their number in a Apiose molecule. Chemical formula of Apiose is C₅H₁₀O₅. From the chemical formula of Apiose, you can find that one molecule of Apiose has five Carbon (C) atoms, ten Hydrogen (H) atoms and five 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 Apiose molecule by multiplying its atomic weight by its number.

Number of Carbon atoms in Apiose: 5
Atomic weight of Carbon: 12.0107
Total weight of Carbon atoms in Apiose: 12.0107 x 5 = 60.0535

Number of Hydrogen atoms in Apiose: 10
Atomic weight of Hydrogen: 1.008
Total weight of Hydrogen atoms in Apiose: 1.008 x 10 = 10.080

Number of Oxygen atoms in Apiose: 5
Atomic weight of Oxygen: 15.9994
Total weight of Oxygen atoms in Apiose: 15.9994 x 5 = 79.997

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

Molecular weight of Apiose: 60.0535 (Carbon) + 10.080 (Hydrogen) + 79.997 (Oxygen) = 180.1566

So the molecular weight of Apiose is 150.1305.

Apiose (C₅H₁₀O₅) 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:

• DeoxyApiose (C5H10O4) Molecular Weight Calculation