ademaio1 ademaio1
  • 21-05-2021
  • Chemistry
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How many grams of chromium are in 2.0 x 1024 atoms

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keijosalonen
keijosalonen keijosalonen
  • 21-05-2021

Answer: 173 g ( 0.17 kg in right accuracy)

Explanation: Amount in moles is n = N/Na =  2.0·10^24 / 6.022·10^23 (1/mol).

n = 3.32116 mol. M(Cr) = 52.00 g/mol and  mass m = nM = 172.7 g

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