A compound possesses 8% sulphur by mass. The | vedclass

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(B) The atomic mass of sulphur is $32 \ g/mol$.Given that the compound contains $8\%$ sulphur by mass,it means $8 \ g$ of sulphur is present in $100 \

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$400$

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(B) The atomic mass of sulphur is $32 \ g/mol$.Given that the compound contains $8\%$ sulphur by mass,it means $8 \ g$ of sulphur is present in $100 \ g$ of the compound.To find the least molecular mass,we assume there is at least one atom of sulphur in the molecule.Therefore,$1 \ g$ of sulphur is present in $\frac{100}{8} \ g$ of the compound.For $32 \ g$ of sulphur (one mole of atoms),the mass of the compound is $\frac{100}{8} 	imes 32 = 400 \ g/mol$.

$A$ compound possesses $8\%$ sulphur by mass. The least molecular mass is

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