How many grams are in 4.2 × 10²² atoms of iron?

asked Apr 23, 2024 9.6k views

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Answer:0.226 gram

Explanation:you can get the answer in two steps calculate 3.40 . 10^22 atoms =

Esteam answered Apr 24, 2024

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2 votes

Answer:

4.2 × 10²² ÷ 6.022× 10²³

4.2 × 10²² equals 0.069 moles (approx)

weight of 1 mole of iron = 56g

therefore, 0.069 moles = 56 × 0.069 = 3.9 g

Sorry for lazy work.. :P

MrPink answered Apr 29, 2024

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