Calculate the molecular weight of Ammonium sulphate [(NH₄)₂SO₄]?

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Solution

We can calculate the molecular weight of a compound by adding the individual atomic weight of the components in the compound.
In Ammonium sulphate [(NH₄)₂SO₄] the individual components are Nitrogen, Hydrogen, Sulphur and Oxygen.
Atomic mass of Nitrogen(N) =14, Since there are 2 Nitrogen atoms, 2×14=28g
Atomic mass of Hydrogen(H)=1, Since there are 8 Hydrogen atoms, 1× 8 = 8g
Atomic mass of Sulphur(S) = 32g
Atomic mass of Oxygen(O) = 16, Since there are 4 Oxygen atoms, 16×4 = 64g
We can calculate the molecular weight of Ammonium sulphate [(NH₄)₂SO₄] by adding the above values.
i.e., The molecular weight of Ammonium sulphate [(NH₄)₂SO₄] = 28 + 8 + 32 + 64 = 132g/mol.
So the molecular weight of Ammonium sulphate [(NH₄)₂SO₄] is 132g/mol.

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