# Problem: The density of solid Cr is 7.15 g/cm 3. How many atoms are present per cubic centimeter of Cr? in atoms/cm3As a solid, Cr adopts a body-centered cubic unit cell. How many unit cells are present per cubic centimeter of Cr? in unit cells/cm3What is the volume of a unit cell of this metal? in cm 3What is the edge length of a unit cell of Cr? in cm

###### FREE Expert Solution

PART 1

We are asked to determine how many atoms are there per cubic centimeter of Cr given the density.

We basically need to convert g → atoms.

When doing unit conversions:

Put units you need to cancel out on opposite places (if it’s in the numerator then put the conversion factor with the same unit in the denominator)

always raise the units to the necessary number especially when dealing with volume, area, etc.

79% (500 ratings) ###### Problem Details

The density of solid Cr is 7.15 g/cm 3. How many atoms are present per cubic centimeter of Cr? in atoms/cm3

As a solid, Cr adopts a body-centered cubic unit cell. How many unit cells are present per cubic centimeter of Cr? in unit cells/cm3

What is the volume of a unit cell of this metal? in cm 3

What is the edge length of a unit cell of Cr? in cm