# How do you find the volume of an irregular object like a rock or sphere in chemistry?

##### 1 Answer

Use the method of displacement of water.

#### Explanation:

Fill a measuring cylinder to a known volume of water, say

Place the solid object of unknown volume

Read off the new volume

The volume of the displaced water is then equal to the volume of the object in the water, ie

This method was initially discovered by Archimedes who was challenged to find a method to prove whether the king's crown was made of pure gold or not. He decided to try and find the density of the crown and compare it to data sheets for the density value of gold. However, since