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State the mass of Avogadro’s number of atoms for Copper（）.
State the mass of Avogadro’s number of atoms for Copper（）.
A.127.10 g
B.63.55 kg
C.23.22 g
D.63.55 g
正确答案：63.55 g
标签：
原子物理
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The mass of a single iron atom is 9.3 × 10–23 g.Determine the number if iron atoms in regular cube that measures exactly 10 cm on an edge.The density of iron is 7.86 g/cm3（）。