How long does it take a snail to travel a distance of 3ft at 0.1ft/sec?
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Answer:
Density = 7.87 grams per mL
Explanation:
Density is given by the formula:
where
Z = effective number of atoms in one unit cell.
M = Molecular mass of the substance
a = edge length of unit cell
Na = Avogadro number = 6.022×10²³
In this case:
Z=2 as it is body-centered type unit cell
M = 56 g per mole for iron
a = 287 pm =
Substituting the above values in the density formula we get:
Density of iron is 7.87 grams per mL.