General Lab Policies and Directions

Monday Group 1: Monique L., Adam S., Jonathan S.

Monday Group 2: Danielle K, Amy W., Rachel G.

Tuesday Group 3: Kate DM., James MC., Danielle M.

Tuesday Group 4: Todd B., Jason A.

Date

Due

Experiment

Safety Lab

Safety in Academic Chemistry Laboratories, 7th ed. Vol. 1

Prudent Practices in the Laboratory

Sioux Center Water Hardness

National Secondary Drinking Water Standards and Other Aesthetic Contaminants: Secondary Contaminants. Water Quality Association.

Ground Water and Drinking Water. U.S. EPA

Water Resources of the United States. USGS

Vostok Ice Core Lab

The Vostok ice core is an important paleoclimate artifact because it allows scientists to evaluate climate change over a period of ~400,000 years. Even though is it relatively new data (1998), the data from this core is now widely available and often cited. This lab will enable you to engage with the data and get a feel for how such data is analyzed. You will see periodic behavior, which has been used to argue both for and against modern anthopogenic climate change.

One group each day completes one of the following computing exercises involving the Vostok ice core.

• Lab at Univ. Michigan Global Change Program. This lab has more background and foundational information about the ice core, but is less specific about Excel. Complete all the "Questions" plus reproduce the graphs in Part 3 as suggested. Do not do the extra credit, the data set below does not include the data.
• Lab at Columbia University's EES Program. This lab is structured a little better and has more Excel help, but also asks you to do more with the data. Complete all of the "Tasks".
• Three figures in Tasks 7 & 8 have moved. They are now available here:
• Current Temperature Data
• Carbon Dioxide Concentrations
• Methane Concentrations
• Full test of the Third Assessment Report
• However, these are from the 2001 Third Assessment Report (TAR) which is superceded by the Fourth Assessment Report (AR4) which came out in 2007. Therefore, the following data would constitute the "current" state of affairs.
• Full text of the Synthesis Report is available here, with captions and commentary on the data below.
• Current Temperature Change Data from the synthesis report.
• Current Temperature Change Data from WG1, but no caption.
• Carbond Dioxide and Methane Concentrations

Save the dataset to your own computer or g-drive, because you will want to save the results. You may complete the lab at any time convenient for the group.

The report will include printouts of all the charts as assigned. In addition, the cover page should provide written answers or discussion of each of the questions/tasks as described in the write-up. Email the instructor a copy of the final spreadsheet as well.

Mar. 2-3

& Mar. 9-10

Air-Water Partitioning of Environmentally Important Organic Compounds

Based on B. R. Ramachandran, John M. Allen, and Arthur M. Halpern, J. Chem. Ed. 1996, 73, 1058-1061.

Mar. 24, 30, 31, Apr. 7

Measurement of Atmospheric Ozone.

Measurement of Atmospheric CO₂.