Experiment 4 Report Sheet-1.docx - Ivy Miller CHEM 111...

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Ivy Miller CHEM 111 – Spring 2020 Experiment 4: The Use and Abuse of Aluminum and Its Compounds Read through the experimental procedure in Chemtrek and watch the associated experiment videos in Canvas. In the provided spaces, write a lab goal, summarize the procedure, record your observations, and complete all questions included in this report sheet. Upload the completed report sheet to Canvas by 11:59PM the day of your lab. Section A: Recycling Aluminum – The synthesis of Alum (Potassium Aluminum Sulfate) Goal: To make an alum, do a qualitative analysis on the alum, determine its melting point, and investigate a commercially available drain opener. ( 1 point ) Procedure: Thompson, S. PSU Chemtrek: Expt. 4 The Use & Abuse of Aluminum and Its Compounds; Keiser, J., Hayden-McNeil Publishing. Plymouth, MI, 2020 pp 4-1 to 4-18. ( 5 points ) Watch the demonstration video to observe the synthesis of alum. In the space below, summarize the experiment and your observations:
1
What do you observe in Steps 4 and 5?
Ivy Miller CHEM 111 – Spring 2020 Question 1: Use a chemical reaction to explain your above observations (steps 4 & 5). ( 5 points )
2
(5 points) What did you observe in Step 13 (addition of H 2 SO 4 )?
Look online for the properties of this particular alum: molar mass, solubility in alcohol, solubility in water, and melting point. Cite your source.

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