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Problem: The substance lithium is found to crystallize in a cubic lattice, with an edge length of 346.0 pm. If the density of solid lithium is 0.5565 g/cm3, how many Li atoms are there per unit cell?

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FREE Expert Solution

We’re being asked to calculate how many Li atoms are present per unit cell if lithium (Li) crystallizes in a cubic lattice.


We’re going to calculate how many Li atoms per unit cell using the following steps:

Step 1: Calculate the volume of the 1 unit cell using the edge length.
Step 2: Calculate the mass of Li atoms in 1 unit cell using density.
Step 3: Calculate how many Li atoms are present per 1 unit cell.



Step 1: Calculate the volume of the unit cell in cm3.

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Problem Details

The substance lithium is found to crystallize in a cubic lattice, with an edge length of 346.0 pm. If the density of solid lithium is 0.5565 g/cm3, how many Li atoms are there per unit cell?

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