Question

Calculate the atom and molecules of sulphur present in 64 gram of sulphur

Answer 1

Molar mass of 1 sulphur = 32g/mol  Molar mass of S8 =32*8=256g/mol Moles=mass/ molar mass Moles =64/256= 0.25 moles   The no. Of atoms in S8 = 6.022*10^23*0.25 = 1.505*10^23 atoms

Answer 2

Answer:

1.505 x 10^23 molecule

Explanation:

Molecular mass of S8 = 32 x 8 = 256 g

i.e. 256 g of S8 contains 6.022 x 10^23 molecules

So 64 g of S8 contains = 6.022 x 10^23 x 64/256

                              = 1.505 x 10^23 molecule