Gold forms a substitutional solid solution with silver. Compute the number of gold atoms per cubic centimeter for a silver-gold alloy that contains 45 wt% Au and 55 wt% Ag. The densities of pure gold and silver are 19.32 and 10.49 g/cm3, respectively. The atomic weight of Au is 196.97 g/mol.

The Number of gold atoms are =

Explanation:

The formula we are going to use is:

Where:

are number of gold atoms.

is Avogadro Number.

is the amount of gold.

is the atomic weight of gold.

is the density of gold.

is the density of silver.

is the amount of silver.

The Number of gold atoms are =

the ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (uvr) from the sun, protecting life on earth from its potentially harmful effects. when the sky is clear, there is an inverse relationship between stratospheric ozone and solar uvr measured at the earth's surface.