Number of atoms in 588.6 g Fe (atomic mass of Fe = 55.86 g `"mol"^(-1)` ) is

Options

A. twice that in 60 g carbon
B. `6.023 xx 10^22`
C. half that of 8g He
D. `558.6 xx 6.023 xx 10^23`

Answer

A

Explanation

No. of atoms ` = (558.6)/(55.86) xx 6.02 xx 10^23`
` = 10 xx 6.02 xx 10^23`
No . Of atoms in 558.6 g = twice the no. of atoms in 60 g C .