The atomic mass of sulphur is 32 u, and sulphur exists as S₈ molecules. What is the molecular mass of sulphur?
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A.
256 u
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B.
32 u
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C.
64 u
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D.
128 u
Correct Answer:
A. 256 u
Explanation:
The correct answer is 256 u.
To find the molecular mass of sulphur (S₈), you multiply the atomic mass of a single sulphur atom by the number of atoms in the molecule. Given that the atomic mass of sulphur is 32 u and there are 8 atoms in each molecule, the calculation is 32 u × 8, which equals 256 u. This represents the total mass of one S₈ molecule.
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