Chem 2223 Analysis Report

The accuracy component of your score for analysis of an unknown is based on the deviation of your reported result from the accepted value. The maximum score for accuracy is 100 points. Report a single value (usually the average) for the composition of your unknown sample.

Report Type. When you complete the form, please check one of the following choices.

• ____First Report.
  • Always select this for your first report. If you need to make make a followup report for any reason, select one of the following options.
• ____Recalculation. Select this option to report a recalculated value. Recalculations will be accepted in the following circumstances
  • There were errors in the formula or data you used for calculating the results of your individual determinations.
  • You failed to apply appropriate statistical methods for rejection of potential outliers (eg, the Q test), and you are reporting a new average based on the statistical test. Except for this case, reporting a new value based on rejection or inclusion of individual results generally will not be accepted.
• ____Repeat New Sample. Select this option to report the results of an analysis of a new sample.
• ____Other. Please provide an explanation if this choice is selected. (Example: You made a data entry error in your first report.)

Your net score for Recalculation and Repeat New Sample will be the computed score minus 5 points. If necessary, you can make additional submissions, including your initial report and any followup reports, for each type of sample. Please refrain from submitting unnecessary followup reports.

Report the results of your analysis online using the link below. After you submit your results online, please print the report confirmation page and submit it with your notebook.

• If you make an error in your submitted report, you can resubmit it. Only your last report on a given day will be saved, and your last report prior to the due date will graded.
• If the confirmation page does not appear, you should submit your report again.
• If you are unable to print the confirmation page, print and complete the alternate report sheet.

Practice Report. Use this link to try it out. No data will be saved. You may also do a trial run with the actual report forms below, but do not click on the Submit Results button.

Chem 2223 Laboratory Analysis Report. Use this form to report your results for the following determinations. For your reported result, enter only the number in the indicated format. Do not include additional symbols such as % or ppm. Report the report with care. Followup reports to correct errors in your initial report will be assessed a 5-point penalty.

• KHP. Deterrmination of potassium hydrogen phthalate in an impure sample. Report your results as % KHP (e.g.: 22.46)
• Sodium Carbonate. Report your results as %Na2CO3 (e.g.: 22.46)
• Water Hardness by EDTA. Report your results for your diluted sample as ppm CaCO3 (e.g.: 1024)
• Iron by 1,10-Phenanthroline. Report the %Fe in your solid sample (e.g.: 2.04)

GC Analysis Report. Use this form to report your GC results.

Schedule: The Analysis Report page is CLOSED for scheduled maintenance every Friday morning starting at 6 am.

Updated 3/29/2008