# The edge of a body-centered-cubic unit cell (which contains two atoms per unit cell) of an element Y was found to be #3.16 x 10^-8# cm. The density of the metal is #19.35##g/(cm^3)#. What is the approximate molar mass of Y?

##### 1 Answer

May 9, 2017

The approximate molar mass of

**Step 1. Calculate the volume of the unit cell**

**Step 2. Calculate the mass of a unit cell**

**Step 3. Calculate the mass of one atom**

This is the mass of **two** atoms.

The approximate molar mass of the element is 184 g/mol.