Lab Notebook Format
Outside Front Cover: Chem 101 Lab [section] / Your Name / Fall 2006
Any give lab exercise:
Title of Lab Exercise / Date
A couple of sentences about what you are doing. If there are several things, give them letters or numbers.
Data collected according to the letters or numbers. And any side-comments.
Conclusion(s).
Other comments.
******** EXAMPLE ********
Lab 1: Density Determinations / August 28/29, 2006
My group (names of partners) used Archimedes’ method for determining the densities of (A) a solid, (B) an amorphorous solid, (C) a liquid. Other groups did the same but with different substances, and their results are given in the comments next to each of our sections.
In each exercise, make duplicates. Each done by a different person with different specimen of the subject material.
(A) Our solid was water ice.
Weight of graduated cylinder filled to 52.3 ml ice water = A1
Weight after adding ice cubes = A2
Volume immediately after adding ice cubes = A3
Density of ice = (A2 - A1)/(A3 - 52.3) = ...
Other groups’ values: Aluminum = .... ; Lead = .... ; Coal = ....
(B) Amorphous solids: we discussed sponge and wood - are we determining the total of the substance plus the trapped air or not? This was a “thought experiment.” We concluded that....
(C) Density of a liquid. My group was assigned motor oil.
Weight of graduated cylinder = C1
Volume of added motor oil = C2
Weight of cylinder and oil = C3
Density of motor oil = (C3 - C1)/C2
Other groups did: ice water = .... ; cold saltwater = ...; warm saltwater = ...
Then for fun, we added food coloring to the liquids (red into ice water; no dye into warm saltwater; blue into cold saltwater) and tried to float one atop the other. To do this, we first poured the least dense into the setup drawn here [picture is sketched], and then poured increasingly dense ones into the funnel. Shown here is the result. [You sketch a picture.]
(D) We took our class’s data and sought its ramifications with the following perspective....
(E) Signed....