Question

Among the following the one that has the highest mass is one gram atom of iron or 10²⁴ carbon atom

Answer 1

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Answer 2

gram atom is equal to gram atomic mass so

so gram atomic mass of iron is 56 g .

now we know 6.022×10^23 atoms contain 12 g of atom

so 10^24 c atoms contain mass= 10^24 × 12 / 6.022×10^23. which gives 19.9 g approximately so u see 54g is more. note that divided is total of 10^24 × 12 by 6.022 × 10 23 .