Question

How many copper atoms in a mass of 0.595⋅g of copper?

Answer 1

Answer:

Avogadro's number of copper atoms has a MASS of  

63.55 g

Explanation:

If we write  

N A = 6.022 × 10 23 m o l − 1

. Then we can estimate the number of copper atoms based on the MASS of the copper atoms.

So we need the proportion of  

1  mole  that  0.595 g  represents.

    0.595 ⋅ g

--------------------- = ? ? mole

63.55 ⋅ g ⋅ m o l − 1

 You then multiply this number by  

N A  to get the NUMBER of copper atoms.

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