Question

Jorge has an unknown mineral. The mineral has a mass of 21 grams and has a volume of 3cm3. Calculate density and find his unknown material

Answer 1

7g/cm³

Step-by-step explanation:

Given parameters:

Mass of the mineral = 21g

Volume = 3cm³

Unknown:

Density of the mineral = ?

Solution:

Density of a substance is the mass per unit volume of the substance.

Density =
`(mass)/(volume)`

Now insert the given parameters and solve;

Density =
`(21)/(3)` = 7g/cm³

The mineral with a density of 7g/cm³ is Galena, an ore of lead.