Question

calculate the number of atoms in 0.25 mole atom of carbon

Answer 1

given,
no. of moles(n) = 0.25
since,
n = no. of atoms / avogadro's no
0.25 = no. of atoms / 6.022x10^23
no. of atoms = 1.5055 x 10^23 atms

Answer 2

1 mole of Carbon atom = 6.022 x 10^23 atoms of Carbon.
Now,
No. Of moles = No. of atoms/Avogadro's No.
=> 0.25 = No. of atoms/ 6.022 x 10^23
=> 0.25 x 6.022 x 10^23 = No. of atoms
=> 1.5055 x 10^23 atoms = No. of Atoms
=> No. of atoms = 1.5055 x 10^23 atoms of Carbon.

Actually, Avogadro's No. was given by Amedo Avogadro. It is represented by L or NA

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