Question

Calculate the number of molecules of sulphur s8 present in 16g of solid sulphur​

Answer 1

Answer:

We have to find the number of molecules present in 16g of solid sulphur. The molecular mass of the sulphur molecule is 32 × 8 = 256 u. 1 mole of sulphur molecules is equal to 256 grams.

Answer 2

Explanation:

calculate molecular mass of sulphur:

Molecular mass of Sulphur (S8) = 8xMass of Sulphur = 8×32 = 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 10²²molecules