Calculate the number of molecules of sulphur (S8) present in 16 g of solid sulphur.
In this question why do we multiply the avagadro number? We are to find number of molecules, so why we take out moles?????????????? plzzzzzz reply
Atomic mass of S = 32g
Molecular mass of S8 = 8 32 = 256g
Given mass of S8 = 16g
Since 1 mole of S8 having mass 256g contains 6.022 1023 molecules of sulphur.
Therefore, 16g of S8 will contain = = 3.76 × 1022 molecules.
Molecular mass of S8 = 8 32 = 256g
Given mass of S8 = 16g
Since 1 mole of S8 having mass 256g contains 6.022 1023 molecules of sulphur.
Therefore, 16g of S8 will contain = = 3.76 × 1022 molecules.