Sink Scum You are a plumber with an exceptional background in chemistry and you are asked to look at some ooze building up under a local sink. You collect.

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Presentation transcript:

Sink Scum You are a plumber with an exceptional background in chemistry and you are asked to look at some ooze building up under a local sink. You collect a sample and bring it back to your lab to analyze. The panicking customer wants an accurate, precise, typed, and individual lab report by Wednesday, February 15th.

Formal Lab Report 1. Title (defining) 2. Purpose (defining) – complete sentences 3. Materials (observing) – list 4. Procedure (observing ) – no 1st person 5. Data (observing) – all quantitative and qualitative 6. Analysis (generalizing) – include source of error and explain exact effects on results 7. Conclusions (generalizing) – typically questions to answer

Conclusion Questions a. What was your unknown # ? b. What is your unknown identity and why do you think so? c. What is your % error (with 3 sig digs) for your density calculation? d. Using the actual density, what is the mass in kilograms of 750 mL of your unknown? e. Using the actual density, what is the volume in liters of 1.20 x 105g of your unknown?