Question

calculate the number of molecules of sulphur(s8) present in 16 g of solid sulphur

Answer 1

The molecules formula of sulphur is given to be S8 ( it Contains 8 atoms of sulphur ). So , the molecular mass of sulphur molecule is 32 × 8 = 256 u. This means that 1 mole of sulphur molecules is equal to 256 grams. Now,256 g of sulphur = 1 mole of sulphur molecules

Answer 2

16*8=128 is the answer