Question

calculate the number of atoms present in 142g of cl​

Answer 1

Answer:

Atomic mass of chlorine is 17u .Therefore 17 gm of chlorine =1 mole of chlorine .Now,1 mole has 6.022*10^23 atoms .

Therefore total atoms in 142 gm of chlorine

142/17*6.022*10^23

8.3529*6.022*10^23

5.0301411786e24 atoms .

Answer 2

Answer:

Atomic mass of chlorine is 17u .

Therefore 17 gm of chlorine =1 mole of chlorine  mole has 6.022*10^23 atoms .

5.0301411786e24 atoms

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