# Silver Selenite [Ag2SeO3] Molecular Weight Calculation

The molecular weight of Silver selenite [Ag2SeO3] is 342.7056.

Silver selenite [Ag2SeO3] is an inorganic compound of three elements: Silver, Selenium, and Oxygen. The molecular weight of Silver selenite is 342.7056 which can be calculated by adding up the total weight (atomic weight multiplied by their number) of Silver, Selenium, and oxygen.

CALCULATION PROCEDURE: Silver selenite [Ag2SeO3] Molecular Weight Calculation

Step 1: Find out the chemical formula and determine constituent atoms and their number in a Silver selenite molecule.
From the chemical formula, you will know different atoms and their number in a Silver selenite molecule. The chemical formula of Silver selenite is Ag2SeO3. From the chemical formula, you can find that one molecule of Silver selenite has two Silver (Ag) atoms, one Selenium (Se) atom, and three Oxygen (O) atoms.

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

Atomic weight of Silver (Ag): 107.8682 (Ref: Jlab-ele047, ciaaw-silver)
Atomic
weight of
Selenium (Se): 78.971 (Ref: Jlab-ele034, ciaaw-selenium)
Atomic weight of Oxygen (O): 15.9994 (Ref: Jlab-ele008)

Step 3: Calculate the molecular weight of Silver selenite by adding the total weight of all atoms.

Number of Silver atoms in Silver selenite: 2
Atomic weight of Silver: 107.8682
Total weight of Silver atoms in Silver selenite: 107.8682 x 2 = 215.7364

Number of Selenium atoms in Silver selenite: 1
Atomic weight of Selenium: 78.971
Total weight of Selenium atoms in Silver selenite: 78.971 x 1 = 78.971

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

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

Molecular weight of Silver selenite [Ag2SeO3]: 215.7364 (Silver) + 78.971 (Selenium) + 47.9982 (Oxygen) = 342.7056

So the molecular weight of Silver selenite is 342.7056.

Silver selenite [Ag2SeO3] Molecular Weight Calculation