For a solid solution consisting of two elements (designated 1 and 2), sometimes it is desi...

For a solid solution consisting of two elements (designated 1 and 2), sometimes it is desirable to determine the number of atoms per cubic centimeter of one element in a solid solution, N1, given the concentration of that element specified in weight percent, C1. This computation is possible using the following expression:

where NA is Avogadro’s number, ρ1 and ρ2 are the densities of the two elements, and A1 is the atomic weight of element 1.

Derive Equation 4.21 using Equation 4.2 and expressions contained in Section 4.4.

 (4.21)

 (4.2)