1. Safety in the laboratory

2. Laboratory Breakdown 25% overall Your Grade will include
Pre-lab: 5 points
Due by the beginning of lab!
Laboratory: 20 points
Due by end of the lab unless told otherwise
Quizzes/Exams
2 safety quizzes, mid-term and final laboratory exams
For Mid-term and Final, you may use your notebook!
Points will be taken off pre-lab if turned in late!

3. General Rules
Eye protection must be worn by ALL students when working in the lab
No food or drink in the lab
Do not taste any chemicals
Put all personal belongings under the benches
Shoes must be worn at all times!
Long Hair Should be tied back or pinned up
Do not work in the lab alone!

4. General Rules Cont. Take care of your mess!!
Make sure your area is cleaned up, and lab drawer is put away properly
If a common area is messy, clean it up!!!
Especially the balance area
Dispose of waste properly
Waste beakers will be labeled, if you don’t know, ask!
If any glassware breaks, dispose of in the glass waste.

5. Proper Attire Closed toed shoes Long pants No spaghetti straps
Goggles must be worn if chemicals are out!!!
Lab aprons are available
Long hair should be tied back

6. MSDS Material Safety Data Sheet
Description and reactivity information of substances
Includes information such as:
Melting Point Boiling Point Toxicity Health Effects
Reactivity Storage Disposal

7. Laboratory Notebook Pre-Lab includes
1 page pre-lab with questions you must answer
Completion of Title, Intro, Purpose, and Procedures in laboratory notebook
Write in ink ONLY! If you make a mistake, cross it out and rewrite. This is a legal document!
Use passive voice in past tense.
“25 mL of ethanol was added to the reaction mixture” instead of “I added 25 mL of ethanol to the mixture”.
Label all data with correct units!

8. Laboratory Notebook To keep yourself organized, put data into tables.
If your data includes an excel graph, staple it into your laboratory notebook, and attach a second copy to hand into your instructor.
Notebook should be used for this lab ONLY!
All pages should be numbered sequentially
Answer all questions posed in the manual in the conclusions, and ALWAYS explain possible sources of error (Human error is not an acceptable answer).

9. Laboratory Notebook
Laboratories will usually be due the Monday after class, unless otherwise specified
Hand in the yellow copies to your instructor along with any graphs attached to the back.
Practice PATIENCE!
Show all calculations in notebook. If several iterations of the same calculation occur, then you only need to provide one example.

10. Notebook Organization
Title: What you are trying to accomplish, e.g, to determine the density of a compound, etc.
Purpose: Expand upon what the purpose of the laboratory is. Think about the information that you will obtain at the end of the experiment.
Procedure and Materials: Should include sufficient information to allow the experiments to be repeated. Usually organized by bullets or numbers. Complete sentences are not necessary.

11. Notebook Organization
Data and Calculations: Clear tables and explanations of calculations for all analysis of primary data. I must be able to see how you came to your answers!
Results, Discussion, and Conclusions: Summarize findings, discuss accuracy and precision. Answer all questions found in the manual, and discuss sources of error. Did you accomplish what you set out to do?

12. Laboratory Equipment