NaCl Mass

Given mass of NaCl is 58.5 amu.

The weight of a single table salt crystal is about 2.439E -4 (.0002439) grams.

To find the number of moles in one cube of NaCl, I took the weight of one NaCl crystal (2.439E-4) and divided it by the atomic weight of one NaCl molecule (58.5 g) to get 4.169E -4 percent (.0004169%). Then I multiplied the percent and avagodros number (6.022E 23). I ended up with (2.5107E 18) molecules in one cube of table salt.

Determining the dimentions of a cube of NaCl.

Measured length of one cube of table salt: 0.6374 mm
Measured length of one Unit Cell of table salt: 3.65E -6 mm

Calculated number of unit cells in one cube of table salt: about 175,000 for each dimension. So in a whole cube, there would be about 5.354E 15 unit cells.