Question

A rectangular piece of platinum has dimensions of 3.50 cm x 2.16 cm x 1.08 cm and weighs 175.5 g. What is the density of platinum?
a. 21.37 g/cm³
b. 24.25 g/cm³
c. 28.11 g/cm³
d. 31.99 g/cm³

Answer 1

Answer:

a. 21.37 g/cm³

Explanation:

To formula to calculate the density is given by,

• Density = Mass/volume

First let's calculate the volume of the A rectangular piece of platinum. Given dimensions of Rectangular piece are 3.50 cm ×2.16 cm × 1.08 cm

So,

Volume = length*width*height

= 3.50 cm × 2.16 cm i 1.08 cm

= 8.165 cm³

Now, Density = Mass/volume

• Density = 175.5 g/8.165 cm²
• Density = 21.37 g/cm³ (approximately)

Hence, The Density of th platinum is approximately 21.37 g/cm³