Respuesta :

Answer:

783g

Explanation:

density = mass/volume

2.70mL/g = xg/290mL

2.70(290) = xg

x = 783g

CHECK:

783/290 = 2.7

Answer:

783 grams

Explanation:

The density formula is:

[tex]d=\frac{m}{v}[/tex]

Rearrange the formula for [tex]m[/tex], mass. Multiply both sides of the formula by [tex]v[/tex].

[tex]d*v=\frac{m}{v}*v[/tex]

[tex]d*v=m[/tex]

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.

[tex]d= 2.7 g/mL\\v=290 mL[/tex]

Substitute the values into the formula.

[tex]m=d*v[/tex]

[tex]m=2.7 g/mL *290 mL[/tex]

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

[tex]m= 2.7 g * 290[/tex]

[tex]m=783 g[/tex]

The mass of the aluminum is 783 grams.