The molecular weight of Tris base (C₄H₁₁NO₃) is 121.13574.

Tris base (C₄H₁₁NO₃) is an organic compound of four elements: Carbon, Hydrogen, Nitrogen, and Oxygen. The molecular weight of Tris base is 121.13574 which can be calculated by adding up the total weight (atomic weight multiplied by their number) of all its elements.

CALCULATION PROCEDURE: Tris base  [C₄H₁₁NO₃] Molecular Weight Calculation

Step 1: Find out the chemical formula and determine constituent atoms and their number in a Tris base molecule.
You will know different atoms and their number in a Tris base molecule from the chemical formula. The chemical formula of Tris base is C₄H₁₁NO₃. From the chemical formula, you can find that one molecule of Tris base consists of four Carbon (C) atoms, eleven Hydrogen (H) atoms, one Nitrogen (N) atom, and three Oxygen (O) 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)
Atomic weight of Nitrogen (N): 14.00674 (Ref: Jlab-ele007)
Atomic weight of Oxygen (O): 15.9994 (Ref: Jlab-ele008)

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

Number of Carbon atoms in Tris base: 4
Atomic weight of Carbon (C): 12.0107
Total weight of Carbon atoms in Tris base: 12.0107 x 4 = 48.0428

Number of Hydrogen atoms in Tris base: 11
Atomic weight of Hydrogen (H): 1.008
Total weight of Hydrogen atoms in Tris base: 1.008 x 11 = 11.088

Number of Nitrogen atoms in Tris base: 1
Atomic weight of Nitrogen (N): 14.00674
Total weight of Nitrogen atoms in Tris base: 14.00674 x 1 = 14.00674

Number of Oxygen atoms in Tris base: 3
Atomic weight of Oxygen (O): 15.9994
Total weight of Oxygen atoms in Tris base: 15.9994 x 3 = 47.9982

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

Molecular weight of Tris base: 48.0428 (Carbon) + 11.088 (Hydrogen) + 14.00674 (Nitrogen) + 47.9982 (Oxygen) = 121.13574

So the molecular weight of Tris base is 121.13574.

Tris base [C₄H₁₁NO₃] Molecular Weight Calculation

REFERENCES:

• Lanl-1: https://periodic.lanl.gov/1.shtml 
• Jlab-ele006: https://education.jlab.org/itselemental/ele006.html 
• Jlab-ele007: https://education.jlab.org/itselemental/ele007.html
• Jlab-ele008: https://education.jlab.org/itselemental/ele008.html
• Pubchem-Chlorine: https://pubchem.ncbi.nlm.nih.gov/element/Chlorine

See also:

• Hydrogen chloride molecular weight calculation