Question

If one mole of sulphur weighs 32 grams, what is the mass of one atom of sulphur

Answer 1

1 mole of sulphur weighs 32g
1 mole of sulphur coantains 6.022×10²³ sulphur atoms
∴6.022×10²³ sulphur atoms weighs 32g
1 sulphur atom weighs=32/6.022×10²³ =5.31×10⁻²³g(Ans.)

Answer 2

1 mole of sulphur weight = 32g

1mole                                 =  6.023×10²³ atoms  

Therefore,

6.023×10²³ atoms weight = 32 grams

1 atoms weight                  = $\frac{32}{6.023}$gram

                                           =5.31×10⁻²³ gram

Therefore,

If one mole of sulphur weight 32 gram, then the mass of one atom of sulphur is 5.31 ×10⁻²³ gram .