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Molar mass of KAl(SO4)^2·12H2O
The molar mass of KAl(SO₄)₂.12H₂O is 474 g/mol
The molar mass of a compound is simply the sum of the molar masses of the individual elements present in the compound.
The molar mass of KAl(SO₄)₂.12H₂O can be obtained as follow:
Molar mass of Potassium, K = 39 g/mol
Molar mass of Aluminum, Al = 27 g/mol
Molar mass of Sulphur, S = 32 g/mol
Molar mass of Hydrogen, H = 1 g/mol
Molar mass of Oxygen, O = 16 g/mol
Molar mass of KAl(SO₄)₂.12H₂O =?
Molar mass of KAl(SO₄)₂.12H₂O = 39 + 27 + 2[32 + (16×4)] + 12[(2×1) + 16]
= 39 +27 + 2[32 + 64] + 12[2 + 16]
= 39 +27 + 2 + 12
= 39 + 27 + 192 + 216
= 474 g/mol
Therefore, the molar mass of KAl(SO₄)₂.12H₂O is 474 g/mol
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