PDF chapter test TRY NOW
Answer the following question
Calculate the number of molecules of sulphur (\(S_8\)) present in 16 g of solid sulphur.
Molar mass of \(S_8\) sulphur = = \(6.022\) x \(10^2{^3}\) molecule.
Given mass of sulphur = 16g.
Molecules of sulphur = x \(6.022\) x \(10^2{^3}\) / 256.
= \(96.35\) x \(10^2{^3}\) / 256.
= \(0.376\) x \(10^2{^3}\).
= x \(10^2{^2}\) molecules.