What is the density of a 2.50 centimeter brass cube and 136.95 grams?

Answer 1

To solve this you need to know the relationship that density = mass divided by volume

We're given a length of a side of a cube as 2.5cm so to find the volume of the cube we need to cube it (length x bredth x height)

volume = (2.5)3 = 15.625cm3

so if density = mass(136.95g)/volume(15.625cm3)

density = 8.7648 g cm-3

in textbooks its given as (8.3- 8.7 gcm-3) as a typical density of brass.

Answer 2

The volume of the cube is calculated by V = side length^3 = (2.50 cm)^3 = 15.63 cm^3. The density is then found by dividing the mass by the volume, giving a density of 8.76 g/cm^3 for the brass cube.