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The diameter of a copper atom is approximately 2.28e-10 m. The mass of one mole of copper is 64 grams. Assume that the atoms are arranged in a simple cubic array. Remember to convert to S.I. units.

What is the mass of one copper atom, in kg?

mass =  kg

How many copper atoms are there in a cubical block of copper that is 3 cm on each side? 

number of atoms =  

What is the mass of the cubical block of copper, in kg?

mass of block =  kg

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