Question

1. calculate the number of atoms present in 6 Gram atom of calcium☺️

Answer 1

Mole= given weight/molecular weight

     =6/40

    = 3/20

    = 0.15

Answer 2

Answer-:

Mass in gram/ atomic mass in gram= no if atom /6. 023* 10^23

6/12= no of atom/ 6.023*10^23

1/2= no of atom/ 6. 023*10^23

no of atom= 6. 023*10^23/ 2

no of atom= 3.01*10^23

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