Question

Aluminum has a density of 2.70 g/mL. Calculate the mass (in grams) of a piece of aluminum having a volume of 239 mL .

Answer 1

mass= volume x density
m = 239 mL x 2.70 g/mL
m = 645.3 g

Answer 2

The mass of the piece of aluminum is 645 g.

Step-by-step explanation:

Density is given by the relationship between mass and volume:

ρ =
`(m)/(V)`

If we take de volume V and pass to multiply the density ρ, we have:

m = ρ * V (Equation 1)

with this formula we can find the mass.

We have that ρ = 2.70
`(g)/(mL)` and V = 239mL

So, replacing these values in Equation 1, we can find the value for the mass:

m = 2.70
`(g)/(mL)` * 239mL

m = 645 g