INTRODUCTION:
MATERIALS:
Balance
Weighing dishes (5 per metal tested)
25mL graduated cylinder
Ruler
Samples of metal shot
PROCEDURE:
1. Using the balance, obtain the following 5 samples of aluminum shot, in separate weighing dishes: 5.0 g, 10.0 g, 15.0 g, 20.0 g, and 25.0 g. Record the masses on the DATA TABLE for aluminum.
2. Find the volume of your metal samples in the following way. Fill a 25mL graduated cylinder with no more than 10 mL of water. The volume only needs to be enough to completely cover the sample when added, but must not go over the 25 mL mark with the sample added. Record the initial volume of the water on the DATA TABLE in the appropriate place. Tilt the cylinder and slide your metal sample carefully into the water, so that it does not break the cylinder and so that water does not splash out. If the metal sample is not completely submerged, you must remove the sample and start again, using a larger initial volume of water. It is important that the metal sample be dry before it is immersed in the water. Otherwise, error will be introduced into the volume measurement. Record the final volume of the water containing the submerged metal sample in the DATA TABLE. Repeat for all 5 samples.
3. Calculate the volume of each metal sample by subtracting the initial volume of water in the cylinder from the final volume. Put the answers in the appropriate place on the DATA TABLE.
4. Plot a graph relating mass and volume. Plot mass on the vertical or y axis, and volume on the horizontal or x axis.
8. Determine the slope of the line. Remember that if a line goes through the point (0,0) its slope is ^{y}/_{x} . In the graph that you have plotted, ^{y}/_{x} is equal to ^{mass}/_{volume}, which is the formula for density. Thus, the slope of the line you have drawn represents the density of the metal you have examined. Record the density in the proper place on the DATA TABLE. Your volume unit is milliliters, but 1 mL = 1 cm^{3} , so your density value can also be given as grams per cubic centimeter.
9. Now repeat the procedure for the other metals. The masses to use are as follows:
Copper = 16.0 g, 32.0 g, 48.0 g, 64.0 g, and 80.0 g.
Lead = 20.0 g, 40.0 g, 60.0 g, 80.0 g, and 100.0 g.
DATA TABLE: for Aluminum  
Mass (g) 
Initial Volume (mL) 
Final Volume (mL) 
Volume of Sample (mL) 





















Density of Aluminum = ______ ^{g}/_{mL} 
DATA TABLE: for Zinc  
Mass (g) 
Initial Volume (mL) 
Final Volume (mL) 
Volume of Sample (mL) 





















Density of Zinc = ______ ^{g}/_{mL} 
DATA TABLE: for Copper  
Mass (g) 
Initial Volume (mL) 
Final Volume (mL) 
Volume of Sample (mL) 





















Density of Copper = ______ ^{g}/_{mL} 
DATA TABLE: for Lead  
Mass (g) 
Initial Volume (mL) 
Final Volume (mL) 
Volume of Sample (mL) 





















Density of Lead = ______ ^{g}/_{mL} 
PREPARED GRAPH PAPER:
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