## Table B Density Of Two Liquids

a. Mass of empty oil cup _ g b. Mass of empty water cup g c. Mass of cup and oil d. Mass of cup and water e. Volume of oil

25 mL

f. Volume of water

25 mL

Calculating Actual Mass

Water

g. Density of oil g/ml h. Density of water g/ml

9. Label one clean plastic cup "oil," and label another "water." Using a balance, measure the mass of each plastic cup, and record the value in your data table.

10. Using a clean graduated cylinder, measure 25 mL of corn oil and pour it into the plastic cup labeled "oil." Using a balance, measure the mass of the plastic cup containing the corn oil, and record the mass in your data table.

11. Using a clean graduated cylinder, measure 25 mL of water and pour it into the plastic cup labeled "water." Using a balance, measure the mass of the plastic cup containing the water, and record the mass in your data table.

12. To find the mass of the oil, subtract the mass of the empty cup from the mass of the cup and the oil together.

To find the density of the oil, divide the mass of the oil by the volume of the oil, as shown in the equation below:

mass of oil 