Aluminum Potassium Sulfate, Anhydrous [AlK(SO4)2] Molecular Weight Calculation

The molecular weight of Aluminum potassium sulfate, anhydrous [AlK(SO4)2] is 258.2070384.

Aluminum Potassium Sulfate, AnhydrousAluminum potassium sulfate, anhydrous [AlK(SO4)2] is an inorganic compound of four elements: Aluminum, Potassium, Sulfur, and Oxygen. The molecular weight of Aluminum potassium sulfate (AlK(SO4)2) is 258.2070384 which can be calculated by adding up the total weight (atomic weight multiplied by their number) of Potassium, Sulfur and Oxygen.

 

CALCULATION PROCEDURE: Aluminum potassium sulfate, anhydrous [AlK(SO4)2] Molecular Weight Calculation

Step 1: Find out the chemical formula and determine constituent atoms and their number in a Aluminum potassium sulfate molecule.
From the chemical formula, you will know different atoms and their number in a Aluminum potassium sulfate molecule. Chemical formula of Aluminum potassium sulfate is AlK(SO4)2. From the chemical formula, you can find that one molecule of Aluminum potassium sulfate consists of one Aluminum (Al) atom, one Potassium (K) atom, two Sulfur (S) atoms and eight Oxygen (O) atoms.

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

Atomic weight of Aluminum (Al): 26.9815384 (Ref: ciaaw-aluminium)
Atomic weight of
Potassium (K): 39.0983 (Ref: Ciaaw-potassium)
Atomic weight of
Sulfur (S): 32.066 (Ref: Jlab-ele016)
Atomic weight of Oxygen (O) : 15.9994 (Ref: Jlab-ele008)

Step 3: Calculate the molecular weight of Aluminum potassium sulfate by adding the total weight of all atoms.

Number of Aluminum atoms in Aluminum potassium sulfate, anhydrous: 1
Atomic weight of Aluminum: 26.9815384
Total weight of Aluminum atoms in Aluminum potassium sulfate, anhydrous: 26.9815384 x 1 = 26.9815384

Number of Potassium atoms in Aluminum potassium sulfate, anhydrous: 1
Atomic weight of Potassium: 39.0983
Total weight of Potassium atoms in Aluminum potassium sulfate, anhydrous: 39.0983 x 1 = 39.0983

Number of Sulfur (S) atoms in Aluminum potassium sulfate, anhydrous: 2
Atomic weight of Sulfur: 32.066
Total weight of Manganese atoms in Aluminum potassium sulfate, anhydrous: 32.066 x 2 = 64.132

Number of Oxygen (O) atoms in Aluminum potassium sulfate, anhydrous: 8
Atomic weight of Oxygen: 15.9994
Total weight of Oxygen atoms in Aluminum potassium sulfate, anhydrous: 15.9994 x 8 = 127.9952

Step 4: Calculate the molecular weight of Aluminum potassium sulfate by adding up the total weight of all atoms.

Molecular weight of Aluminum potassium sulfate, anhydrous : 26.9815384 (Aluminum) + 39.0983 (Potassium) + 64.132 (Sulfur) + 127.9952 (Oxygen)

So the molecular weight of Aluminum potassium sulfate is 258.2070384.

Aluminum potassium sulfate [AlK(SO4)2] Molecular Weight Calculation

Molecular weight of Aluminum potassium sulfate, anhydrous [AlK(SO4)2]
Constituent atomsNumber of each atom
Atomic weight
Total weight
Aluminum (Al)
1
26.981538426.9815384
Potassium (K)139.098339.0983
Sulfur (S)2
32.06664.132
Oxygen (O)8
15.9994127.9952
Molecular weight of Aluminum potassium sulfate (AlK(SO4)2):
258.2070384

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