Lab

Lab write-ups are due at the beginning of lab the week after the experiment is completed.

Resources:
Lab Safety Rules
What goes where in a lab report?
Example Lab Report Grading Rubric

Dates, Experiment
Sept 8,  Familiarity with Analytical Glassware and Procedures
Experiment text:  Lab 1- Analytical glassware and measurements
Prelab assignment:  Watch video, read lab introduction, do calculation  (Section D, Q1)
Safety: Be careful with glassware,  Students must wear safety goggles at all times, Do not ingest Ni solution (MSDS- NiSO4-6H2O).
Lab writeup:  Fill in the supplied data tables, perform and attach requested calculations, and email excel spreadsheets to instructor
Rubric:  Lab 1 rubric
Resources:  Gilson  pipet tolerances,  Setting tolerances for pipettes in the laboratory
We are using Gilson Pipetman P Pipets in this lab
9-8-2014 Lab 1 Whole  Class Data
Lab due: Sept 22 in lab

 

Sept 15 & 22,  Measuring Ni using Calibration Curve and Standard Addition
Experiment text:  Lab 2- Measuring Ni using Calibration Curves and Standard Addition
Prelab assignment:  Watch video,  respond to prelab questions,  prepare data tables
**NOTE: you will ONLY be able to use your hand-written data tables for this lab**

Safety:  Students must wear safety goggles at all times,  Do not ingest Ni solution (MSDS- NiSO4-6H2O)
Lab writeup:  Lab writeup is to include sections: purpose, results, discussion, conclusion, references, and group dynamics.  Attach applicable calculations and email excel sheet to instructor.
Rubric:  Lab 2 rubric
Resources:
 Help with Microsoft Excel;  Example Lab 2 Writeup– Hayes;  Example Lab 2 Writeup– Williams, 2012
2014 Lab 2 unknown concentrations data
Lab 2 spectra
Lab due: Sept 29 in lab

 

September 29, Oct. 6 &13,  Trends in the Copper Content of Pennies Through Time
Experiment text:  Lab 3- Trends in Copper Content of Pennies through time
Prelab assignment: See weekly details below
Safety:  Students must wear safety goggles at all times and gloves while handling acid. This procedure requires strong (6-16 M) nitric acid (MSDS- HNO3) that reacts with copper to form nitrogen (di)oxide (MSDS- NO;  MSDS- NO2).  Strong acids must be handled ONLY in the hood with the sash down.  Flush immediately with water if contact occurs  and inform TA or professor.
Lab writeup:  Lab writeup is to include sections: purpose, introduction, results, discussion, conclusions, references, and group dynamics.  Attach applicable calculations and email excel sheet to instructor.
Rubric:  Lab 3 rubric
Resources: Help with Microsoft Excel,  lab 3 prelab

Week 1: Preparing pennies and standards for analysis (Sept. 29)
Prelab assignment*  Watch video,  lab 3 prelab,  prepare lab notebook with data tables and procedure.

Week 2: Analysis of Cu by Flame AA (Oct. 6)
Prelab assignment:    Prepare lab notebook with data tables and procedure.
Intermediate lab writeup* Data tables and figures due 10am  Friday (Oct. 10) by email.
Data:Lab 3 2014 Group 1  (Ruth, Sara, Tim, Kyle)
Lab 3 2014 Group 2  (Jacob, Jamie, Niki, Michael, Gage)
Lab 3 2014 Group 3  (Roger, Pearson, Olivia, Jessica, Benjamin)

Unknown [Cu]:  2014 Lab 3 Cu unknowns

Week 3: Data  Analysis (Oct. 13)
Prelab assignment:    bring laptop with stat pack installed to class if you  want

 

October 20 & 27,  Iron Redox Titration
Experiment text:  Lab 4- Iron Redox Titration
Prelab assignment:  Watch video,  respond to prelab questions,  prepare  lab notebook.

Safety:  Students must wear safety goggles at all times. This procedure requires strong oxidizer, KMnO4 (MSDS-KMnO4), and 6 N sulfuric acid (MSDS- H2SO4).  Do not contact or ingest!  If contact occurs, flush with water and inform TA or professor.
Lab writeup:  Lab writeup is to include sections: abstract, purpose, introduction, materials and methods, results, discussion, conclusions, references, and group dynamics.  Attach applicable calculations.
Rubric:  Lab 4 rubric

November 3, Molecular Spectroscopy
Experiment text:  Lab 5- Molecular Spectroscopy
Prelab assignment:  Respond to prelab Qs- they will be turned in at the beginning of lab
Safety:  Students must wear safety goggles at all times.  This experiment involves benzene and hexane, which are toxic.  Please review the  MSDS benzene  and  MSDS Hexane
Lab writeup:  full report
Rubric:  Lab 5 grading rubric
Data:  2014 Lamda 900
2014 Fluoresence data
Lab due: November 17  in lab

November 10,  FT-IR
Experiment text:  Lab 6- FT-IR
Prelab assignment:  Watch  Sample preparation  video,  Write procedure and bring a plastic to analyze.  Research what you believe the plastic you want to analyze may be and bring a summary.
Safety:  Hot plates are hot, do not touch.  Melt plastics only in fume hoods.
Lab writeup:  full report
Rubric:  Lab 6 grading rubric
Resources:  Identifying plastics lecture tutorial,  Comparison Data needed for writeup
2014 CHEM 212 FT_IR data
The parafilm data was collected under a variety of conditions.
Lab due:  November 24 in class (lab is cancelled that day)

 

November 17 & December 1,  Caffeine extraction from coffee or tea
Experiment text:  Lab 7 – Caffeine Extraction by HPLC Lab text
Prelab assignment:  Watch video,  Read paper,  write procedure,  prepare data tables.
Safety:  Students must wear safety goggles at all times.  Do not touch hotplate on coffee maker, it is hot!
Lab writeup:  full report, including a detailed procedure
Rubric:  2014 Lab 7 grading rubric
Resources:
Lab due: Dec. 8  in lab

December 1 & 8, Dirty Money
Experiment text:  Dirty money case study,  Lab 8- dirty money procedure
Prelab assignment:    read the case study  and lab instructions, bring a dollar or two to lab (you will get these back).
Safety:  Please review MSDS for methanol:  MSDS Methanol
Lab writeup:  none
Resources:  Oyler, 1996;  Negrusz, 1998
Retention time of cocaine using our setup is about 8.3 minutes.

 

 

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