Patty Mason
PURPOSE: The objective of the experiment is to determine the thickness of a piece of aluminum foil, in centimeters, determine the total number of aluminum atoms present and the number of atoms thick the foil is.
PROCEDURE: You are to carefully cut a piece of aluminum foil no larger than 30 cm2. From this you need to calculate the thickness of the foil in centimeters. Using scientific notation, calculate the number of atoms present in the sample of foil. Assume the atoms are lined-up in order ( not jumbled or in a crystal) and calculate the number of atoms thick the foil is.
USEFUL INFORMATION:
Density of aluminum : 2.70 g/cm3
Radius of aluminum atom: 1.43 x 10 -8 cm
LAB WRITE-UP:
In your lab notebook, using the standard procedure for lab reports given to you earlier, write a complete lab report. Describe your procedure in enough detail so others could duplicate the experiment. List the equipment needed. Include a table for your data. Be certain to use the measuring devices correctly and report measurements to the correct number of significant figures.. Show your set-ups for calculations, units for all numbers and sketches if you need them. Clearly label the three quantities you are asked to determine. Explain sources of experimental error.
Questions? Comments??