The molecular weight of Allose (C_{6}H_{12}O_{6}) is 180.1566.

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: Allose (C**_{6}H_{12}O_{6}) Molecular Weight Calculation

_{6}H

_{12}O

_{6}) Molecular Weight Calculation

**Step 1: Find out the chemical formula and determine constituent atoms and their number in a Allose molecule.**From the chemical formula, you will know different atoms and their number in a Allose molecule. Chemical formula of Allose is C

_{6}H

_{12}O

_{6}. From the chemical formula of Allose, you can find that one molecule of Allose have six Carbon (C) atoms, twelve Hydrogen (H) atoms and six 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 Allose molecule by multiplying its atomic weight by its number.**

Number of Carbon atoms in Allose: 6

Atomic weight of Carbon: 12.0107

Total weight of Carbon atoms in Allose: 12.0107 x 6 = 72.0642

Number of Hydrogen atoms in Allose: 12

Atomic weight of Hydrogen: 1.008

Total weight of Hydrogen atoms in Allose: 1.008 x 12 = 12.096

Number of Oxygen atoms in Allose: 6

Atomic weight of Oxygen: 15.9994

Total weight of Oxygen atoms in Allose: 15.9994 x 6 = 95.9964

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

Molecular weight of Allose: 72.0642 (Carbon) + 12.096 (Hydrogen) + 95.9964 (Oxygen) = 180.1566

So the molecular weight of Allose is 180.1566.

Allose (C_{5}H_{10}O_{5}) Molecular Weight Calculation

Molecular weight of Allose | |||

Constituent atoms | Number of each atom | Atomic weight | Total weight |

Carbon (C) | 6 | 12.0107 | 72.0642 |

Hydrogen (H) | 12 | 1.008 | 12.096 |

Oxygen (O) | 6 | 15.9994 | 95.9964 |

Molecular weight of Allose: | 180.1566 |

## 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