Question

Calculate the number of atom in each
of the following (Given : Atomic mass
of I=127 u).
a. 254 u of iodine (1)
b. 254 g of iodine (1)
(Ans. : 2 atoms, 1.2044 x 104 atoms)​

Answer 1

Answer:

127 u or 127 g of iodine contains avagadro number of atoms that is 6.023×1023 .so that for 2 54 u or 254 g contai62×6.023×1023 = 12.046 ×1023 atlms