Question

What is the mass of a 1.00cm3 piece of iron having a density of 7.90g/cm3

Answer 1

7.90g/cm³ = 7.90g/1cm³ - this density means that 1 cm³ has mass = 7.90 g

Or you can do it another way
1.0 cm³*7.90 g/cm³= 7.90 g

Answer 2

Mass of iron = 7.90 g

Step-by-step explanation:

Given:

Volume of iron, V = 1.00 cm3

Density of iron, D = 7.90 g/cm3

To determine:

Mass of iron, M

Step-by-step explanation:

Density of a substance is the mass occupied by it in a given volume

I.e.
`Density = (Mass)/(Volume)`

`Mass = Density*Volume`

For the given piece of iron:

`Mass = 7.90 g/cm3 * 1.00 cm3 = 7.90 g`