OpenStudy (anonymous):
I do not understand how to get any of these, if you could just put the equations for how to get them that would be amazing! thanks for your help!!! :) The density of solid Fe is 7.87 g/cm3. How many atoms are present per cubic centimeter of Fe? As a solid, Fe adopts a body-centered cubic unit cell. How many unit cells are present per cubic centimeter of Fe? What is the volume of a unit cell of this metal? What is the edge length of a unit cell of Fe?
OpenStudy (anonymous):
The first part of this question is solved by using Avogadros number by converting the amount of Fe you have into its molar mass.. think of it as u have certain amount of Iron in ur hand.. u know its weight then all u have to do is use the periodic table and calculate the molar mass.. its a hard concept but once you understand it youll see its a conversion question. |dw:1399274071197:dw|
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