Calculate the number of molecules of sulphur (S8) present in 16g of solid sulphur.

Asked by Vishal kumar | 1 year ago |  337

#### 1 Answer

##### Solution :-

To calculate molecular mass of sulphur:

Molecular mass of Sulphur (S8) = 8xMass of Sulphur = 8x32 = 256g

Mass given = 16g

Number of moles = mass given/ molar mass of sulphur

= 16/256 = 0.0625 moles

To calculate the number of molecules of sulphur in 16g of solid sulphur:

Number of molecules = Number of moles x Avogadro number

= 0.0625 x 6.022 x 1023 molecules

= 3.763 x 1022 molecules

Answered by Shivani Kumari | 1 year ago

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