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 .

783 grams

Explanation:

The density formula is:

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

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.

Substitute the values into the formula.

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

The mass of the aluminum is 783 grams.

the density of gold = 19.3 g/cm3

the relation between density and mass and volume is

density = mass / volume

given :

mass of gold = 13 g

density = 13g / volume = 19.3

volume = 13 /19.3 = 0.67 cm^3

thus volume of gold nugget = 0.67 cm^3