The molecular weight of Decane (C_{10}H_{22}) is 142.283.

Decane (C_{10}H_{22}) is an organic compound of two elements: Carbon, and Hydrogen. The molecular weight of Decane is 142.283 which can be calculated by adding up the total weight (atomic weight multiplied by their number) of all its elements.

**CALCULATION PROCEDURE: Decane [C**_{10}H_{22}] Molecular Weight Calculation

_{10}H

_{22}] Molecular Weight Calculation

**Step 1: Find the chemical formula and determine constituent atoms and their number in a Decane molecule.**You will know different atoms and their number in a Decane molecule from the chemical formula. The chemical formula of Decane is C

_{10}H

_{22}. The chemical formula shows that one Decane molecule consists of ten Carbon (C) atoms and twenty-two Hydrogen (H) atoms.

**Step 2: Find out the atomic weights of each atom (from the periodic table). **

Atomic weight of Carbon (C): 12.0107 (Ref: Jlab-ele006)

Atomic weight of Hydrogen (H): 1.008 (Ref: Lanl-1)

**Step 3: Calculate the total weight of each atom in a Decane molecule by multiplying its atomic weight by its number.**

Number of Carbon atoms in Decane: 10

Atomic weight of Carbon (C): 12.0107

Total weight of Carbon atoms in Decane: 12.0107 x 10 = 120.107

Number of Hydrogen atoms in Decane: 22

Atomic weight of Hydrogen (H): 1.008

Total weight of Hydrogen atoms in Decane: 1.008 x 22 = 22.176

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

Molecular weight of Decane: 120.107 (Carbon) + 22.176 (Hydrogen) = 142.283

So the molecular weight of Decane is 142.283.

Decane [C_{10}H_{22}] Molecular Weight Calculation

Molecular weight of Decane [C_{10}H_{22}] | |||

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

Carbon (C) | 10 | 12.0107 | 120.107 |

Hydrogen (H) | 22 | 1.008 | 22.176 |

Molecular weight of Decane [C_{10}H_{22}]: | 142.283 |

## REFERENCES:

- Lanl-1: https://periodic.lanl.gov/1.shtml
- Jlab-ele006: https://education.jlab.org/itselemental/ele006.html