1. Experiment Name: Density Column Lab The purpose of this experiment is to determine the densities of various solutions by calculating the mass and volume of each liquid. Hypothesis From a list of known solutions, predict which solution will have the highest density and which solution will have the lowest density. – Distilled water – Liquid soap – Vegetable oil – Rubbing alcohol – Karo syrup (light corn syrup made from vanilla) Example: I hypothesize that water is the densest among all liquids.

2. Density Column Lab B.1-B.3 – Found on page 26-29 in your book. Please write down the definitions of the following words: – Matter, physical properties, density, aqueous solution, mixture, heterogeneous mixture, suspension, colloid, homogeneous mixture, solutions, solute and solvent.

3. Density Column Lab Make a list of predicted densities – For example: Lowest Density 1. Liquid Soap 2. Rubbing alcohol 3. Vegetable oil 4. Water 5. Karo syrup Highest Density

4. Data Table Liquid NameColor of LiquidMass of LiquidVolume of Liquid Density of Liquid Mass of the graduated cylinders = _________________________________________

5. Procedure 1. Slowly pour a small amount of the Karo syrup in the test tube. Allow the liquid to move to the bottom of the test tube. 2. Slowly pour the remaining liquid in the following order: dish soap, water, vegetable oil and rubbing alcohol. 3. Record the contents of the test tube in your lab manual, noting the order in the test tube. 4. Obtain (2) graduated cylinders and mass them both using a balance. 5 Using a pipette, extract the uppermost liquid and place it in one of the graduated cylinders.

6. Procedure 6. Mass the graduated cylinder with the liquid to determine the mass of the liquid and record the mass and the volume in the data table. 7. Wash out the graduated cylinder and repeat steps 5-6 until all the liquid is massed and volumes are recorded. 8. Wash the test tube and the graduated cylinder before you leave. 9. Calculate the density of each liquid using the formula Density = Mass/Volume