Question

Find the number of atoms in 5.6 gram of iron. ​

Answer 1

ANSWER

We know that,

Atomic mass of iron = 56amu

Therefore,

56 grams of Fe = 1 gram atom of Fe= 6.022×10^23 Fe atoms

Therefore,

5.6 grams of Fe=

$\frac{5.6}{56} \times 6.022 \times {10}^{23}$

=6.022×10^22 Fe atoms

THANKS

Answer 2

Hello!!!!

GM-> 5.6g

MM -> 56

Atomicity-> 1

-No. of atoms= GM/MM ×Nâ× atomicity

-5.6/56 ×6.02 ×10²³

-6.02×10²² atoms

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