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If Sulphur Exists as S8 Molecules, Calculate the Number of Moles in 100 G of Sulphur. (S = 32 U) - Science

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Short Note

If sulphur exists as S8 molecules, calculate the number of moles in 100 g of sulphur. (S = 32 u)

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Solution

Mass of sulphur = 100g (sulphur exists as S8 molecules)

molecular mass of sulphur = (8 × 32) = 256g

Number of moles in 256g of sulphur  = 1 mole

Therefore, number of moles in 100g of sulphur = 100/256 = 0.39 moles

Hence, 100g of sulphur contains 0.39 moles of sulphur.

Concept: Molecular Mass
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APPEARS IN

Lakhmir Singh Class 9 Chemistry - Science Part 2
Chapter 3 Atoms and Molecules
Long Answers | Q 34.2 | Page 173

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