Question

Calculate the formula unit mass of
Potassium sulphate. The atomic mass of
potassium, oxygen and sulphur
are
39u, 16u and 32u respectively.​

Answer 1

Answer:

Chemical formula of potassium = K

Chemical formula of Oxygen = O2

Chemical formula of Sulphur = S8

Atomic mass of potassium (K) will be = 39u

Atomic mass of oxygen (O2) will be = 16×2 →32u

Atomic mass of Sulphur (S8) will be = 32×8 → 256u

Formula unit mass = Sum of atomic mass of all atoms

So, ans will be 39u+32u+256u

-> 327u

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Answer 2

Answer:

Chemical formula of potassium = K

Chemical formula of Oxygen = O2

Chemical formula of Sulphur = S8

Atomic mass of potassium (K) will be = 39u

Atomic mass of oxygen (O2) will be = 16×2 →32u

Atomic mass of Sulphur (S8) will be = 32×8 → 256u

Formula unit mass = Sum of atomic mass of all atoms

So, ans will be 39u+32u+256u

= 327u

Explanation: