If a sample of copper is 3.3g, how many moles of copper atoms is there in the sample?

Question

Chemistry

Zackery Reese

25 April, 20:45

If a sample of copper is 3.3g, how many moles of copper atoms is there in the sample?

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Answers (1)

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Emmalee Pittman · Answer 1

3.1 * 10^22 atoms Cu

Explanation:

M (Cu) = 63.5 g/mol

3.3 g Cu * 1mol Cu/63.5 g Cu = 0.0520 mol Cu

0.0520 mol Cu * 6.02*10^23 atoms Cu/1 mol Cu = 3.1 * 10^22 atoms Cu