Question

What is the density of 400g of copper with 1.5 mL of volume?

Answer 1

The density of copper with the values given in the question is `"300 g/cm"^3"`. This is NOT the correct density for copper, which is `"8.96 g/cm"^3"` near room temperature.

Explanation:

Density is the mass per unit of volume. The density equation is `"D="M/V"`, where `"D"` is density, `"M"` is mass, and `"V"` is volume.

The mass of copper is `"400 g"`. The volume is `"1.5 mL"`, which is equal to `"1.5 cm"^3"`. This is because `"1 mL"="1 cm"^3"`. Since copper is a solid, we'll use the cubic centimeter unit `("cm"^3")`.

Plug the values into the equation.

`"D"="400 g"/"1.5 cm"^3"` `=` `"300 g/cm"^3"` rounded to one significant figure.

NOTE!: The actual density of copper is `"8.96 g/cm"^3"`.