Question

A rectangular piece of platinum has dimensions of 3.50 cm*2.16 cm*1.08 cm and weighs 175.5 g. What is the density of platinum?

Answer 1

21.5 g/cm³

Step-by-step explanation:

We define density as mass / volume.

We have the mass of the Pt piece → 175.5 g

Therefore, we must find out the volume with the data of dimensions:

3.50 cm . 2.16 cm . 1.08 cm = 8.16 cm³

Density is 175.5 g / 8.16 cm³ = 21.5 g/cm³