2. Atoms & Elements
Mole Concept
Multiple Choice
Multiple ChoiceA cylindrical copper wire is used for the fences around a house. The copper wire has a diameter of 0.0750 in. How many copper atoms are found in 5.160 cm piece? The density of copper is 8.96 g/cm3. (V = π • r2 • h)
A
2.01 x 1022 Cu atoms
B
6.36 x 1021 Cu atoms
C
9.91 x 1021 Cu atoms
D
1.25 x 1022 Cu atoms
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