1.

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

Answer»

twice that in 60 g carbon
`6.023 XX 10^22`
HALF that of 8g He
`558.6 xx 6.023 xx 10^23`

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


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