Question

Aluminum has a density of 2.70 g/mL. Calculate the mass (in grams) of a piece of aluminum having a volume of 290 mL .

Answer 1

783g

Step-by-step explanation:

density = mass/volume

2.70mL/g = xg/290mL

2.70(290) = xg

x = 783g

CHECK:

783/290 = 2.7

Answer 2

783 grams

Step-by-step explanation:

The density formula is:

`d=(m)/(v)`

Rearrange the formula for
`m`, mass. Multiply both sides of the formula by
`v`.

`d*v=(m)/(v)*v`

`d*v=m`

The mass can be found by multiplying the density and the volume.

Aluminum has a density of 2.70 grams per milliliter and the volume of this piece is 290 milliliters.

`d= 2.7 g/mL\\v=290 mL`

Substitute the values into the formula.

`m=d*v`

`m=2.7 g/mL *290 mL`

Multiply. When multiplying, the milliliters, or "mL" will cancel each other out.

`m= 2.7 g * 290`

`m=783 g`

The mass of the aluminum is 783 grams.