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How do you calculate the number of atoms in a block of aluminum that is 2 cm x 4 cm x 1 cm?
Wiki User
∙ 14y ago
Volume of block = 8cm3. The density of Al is 2.7 g/cm3
Density = mass/volume
Mass=Density*Volume
Mass= 21.6g
21.6g Al *(1mole/26.98g) = .8 moles Al
.8moles*(6.022*1023atoms/mole) = 4.82*1023 atoms
Wiki User
∙ 14y ago
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