1.

How many atoms s8 are present in 50 grams of sulphur ? The relative number of atomic mass of sulphur is 32 .

Answer»

Molecular mass of Sulphur (S8) = 32 x 8 = 256 g

Given mass = 50 g

No: of moles = Given mass / Molar mass= 50/256

No: of molecules = No: of moles x Avogadro no:= 50/256 x 6.022 x 10²³ molecules= 0.195 × 6.022 × 10^23= 1.17 × 10^23



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