Question

A cube of osmium metal 1.500 cm on a side has a mass of 76.31 g at 25 ?c. part a what is its density in g/cm3 at this temperature?

Answer 1

The density of a copper cube with a mass of 5.34 g and a volume of 3.375 cm³ is 1.58 g/cm³.

Step-by-step explanation:

To find the density of copper using a cube similar to the one made of osmium, we can apply the formula for density:

Density = Mass / Volume

We're given the mass of the copper cube as 5.34 g. The volume of the cube, with each side being 1.500 cm long, is calculated as side³, which in this case is 1.500 cm x 1.500 cm x 1.500 cm = 3.375 cm³. Therefore, the density of copper is 5.34 g / 3.375 cm³.

After performing the division, we get the density of copper equals 1.58 g/cm³ (to two decimal places).

Answer 2

The volume of the cube osmium metal is calculated by multiplying the given dimension to itself three times.
v = (1.5 cm)(1.5 cm)(1.5 cm)
v = 3.375 cm³
Density is calculated by dividing the mass by volume.
d = (76.31 g)/(3.375 cm³)
d = 22.61 g/cm³

Thus, the density of the metal is approximately 22.51 g/cm³.