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 Table of Contents
  Introductory Comments
  What is Molecular Modeling?
  Why is Molecular Modeling Important?
  What do some common molecules look like?
  Where's the Math?
  Carbon 3 Ways
  Carbon Compounds
  Water and Ice
  Water and Ice pt.II
  How to view structures in class or at home
  MathMol Library of Structures.
  Tutorial 1: 1-Dimension, 2-Dimensions, 3-Dimensions...
  Tutorial2: The Geometry of 2 Dimensions..
  Tutorial3: The Geometry of 3- Dimensions
  Tutorial4: The Geometry of Molecules.
  Appendix1: Scientific Notation
  Appendix 2: Mass
  Appendix3: Volume
  Appendix4: Density
 

Volume is the amount of space an object occupies.

The volume of an object can be calculated using mathematical equations. The volume of a cube can be found using the formula V=(side)x(side)x(side) or by using a graduated cylinder to measure liquid displacement.


Case I. Finding volume geometrically.

What is the volume of the metal cube shown here (to the nearest tenth of a cm?


cubic cm.

 

Having trouble? Try this hint.


Note:

The side of the cube is approximately 3.1 centimeters. How many inches does this convert to (use 2.54 cm. = 1 inch)? A calculator is available to the right.


inches
Need help use the length converter


Case II. Measuring Volume using a graduated cylinder.

It is also possible to find the volume of an object by measuring the volume of water that it displaces.

The cube shown above is lowered into a graduated cylinder containing water.

What was the amount of water displaced by the object?

 

Before After

 


Please enter your answer in the space provided. If you need a calculator one is available. to the right.


inches


Notice that both methods give fairly accurate values for the volume of the cube. Why are the volumes not exactly the same for the two methods used?

How does the volume of a cube vary with the area of one of its surfaces? With the length of one side of the cube?

Type in any value for length and then click on one of the other boxes.

  • Length of Side : units
  • Area of One Surface: square units
  • Volume of Cube: cubic units

  • Please continue to the next chapter!


    Please continue to the next chapter on density

     

     

    Questions or Comments?


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