The molecular weight of Ammonium nitrite [NH₄NO₂] is 64.04428.

Ammonium nitrite [NH₄NO₂] is an inorganic compound of three elements: Nitrogen, Hydrogen, and Oxygen. The molecular weight of Ammonium nitrite is 64.04428 which can be calculated by adding up the total weight (atomic weight multiplied by their number) of Nitrogen, Hydrogen, and Oxygen.

CALCULATION PROCEDURE: Ammonium nitrite [NH₄NO₂] Molecular Weight Calculation

Step 1: Find the chemical formula and determine constituent atoms and their number in an Ammonium nitrite molecule.
You will know different atoms and their number in an Ammonium nitrite molecule from the chemical formula. The chemical formula of Ammonium nitrite is N₂H₄O₂. From the chemical formula of Ammonium nitrite, you can find that one molecule of Ammonium nitrite has two Nitrogen (N) atoms, four Hydrogen (H) atoms, and two Oxygen (O) atoms.

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

Atomic weight of Nitrogen (N): 14.00674 (Ref: Jlab-ele007)
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 in an Ammonium nitrite molecule by multiplying its atomic weight by its number.

Number of Nitrogen atoms in Ammonium nitrite: 2
Atomic weight of Nitrogen (N): 14.00674
Total weight of Nitrogen atoms in Ammonium nitrite: 14.00674 x 2 = 28.01348

Number of Hydrogen atoms in Ammonium nitrite: 4
Atomic weight of Hydrogen (H): 1.008
Total weight of Hydrogen atoms in Ammonium nitrite: 1.008 x 4 = 4.032

Number of Oxygen atoms in Ammonium nitrite: 2
Atomic weight of Oxygen (O): 15.9994
Total weight of Oxygen atoms in Ammonium nitrite: 15.9994 x 2 = 31.9988

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

Molecular weight of Ammonium nitrite: 28.01348 (Nitrogen) + 4.032 (Hydrogen) + 31.9988 (Oxygen) = 64.04428

So the molecular weight of Ammonium nitrite is 64.04428.

Ammonium nitrite [NH₄NO₂] Molecular Weight Calculation

REFERENCES:

• Lanl-1: https://periodic.lanl.gov/1.shtml 
• Jlab-ele008: https://education.jlab.org/itselemental/ele008.html
• Jlab-ele007: https://education.jlab.org/itselemental/ele007.html

See also:

• Apiose (C5H10O5) Molecular Weight Calculation