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mr_godi [17]
2 years ago
13

How many grams of chromium are in 2.0 x 1024 atoms

Chemistry
1 answer:
Vaselesa [24]2 years ago
7 0

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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