# Volume Calculation in a Graduated Cylinder

## What is the volume of the pyrite?

A graduated cylinder had 20mL of water. A sample of pyrite was placed in the cylinder and the volume moved to 35 mL. What is the volume of the pyrite?

## Volume of the Pyrite

The volume of the pyrite can be calculated by subtracting the initial volume of water in the graduated cylinder from the final volume after the pyrite was added. In this case, the initial volume was 20mL and the final volume was 35mL. Therefore, the volume of the pyrite can be calculated as follows:

**Volume of Pyrite = Final Volume - Initial Volume**

**Volume of Pyrite = 35mL - 20mL = 15mL**

When a sample of pyrite was placed in the graduated cylinder containing 20mL of water, the volume increased to 35mL. This indicates that the pyrite displaced 15mL of water, which is equivalent to its volume within the cylinder.

Pyrite is a mineral composed of iron sulfide and has a characteristic brass-yellow color. It is commonly found in various geological formations and can be used as a source of sulfur and in the production of sulfuric acid.

Understanding how to calculate the volume of an object based on the displacement method is essential in various scientific experiments and measurements. By utilizing a graduated cylinder and observing the change in volume after adding a solid object, such as pyrite, one can determine the volume of the object itself.