Organic Chemistry I
LAB NOTEBOOK Set–Up Week 2
Clerical data, especially date, name, and partner’s name.
Hypothesis – For Week 2 of this lab, please write a hypothesis about how useful H–NMR will be for helping to determine the types of hydrogen atoms present in your compounds.
Pre–Lab Questions Week 2 – Do on separate sheet, not in Lab Notebook
- During last week’s lab, Harold and Erma started by taking a melting point of their solid, unknown X. However, when interpreting their data, is the melting or boiling point of the unknown going to be the piece of data that they use first to begin to identify the unknown? Explain.
- What did the IR spectra tell you about your solid?
- What did the IR spectra tell you about your liquid?
• Experimental Plan – Use the Experimental directions below to write a plan for the work you need to do in Week 1’s lab session
• Data – Create spaces in your notebook to record all the data you will collect.
LAB NOTEBOOK Set–Up Week 3
Clerical data, especially date, name, and partner’s name.
Hypothesis – For Week 3 of this lab, please write a hypothesis about how useful Mass Spec will be for helping to determine the types of functional groups present in your compounds.
Pre–Lab Questions Week 3 – Do on separate sheet, not in Lab Notebook
- During last week’s lab, you obtained H–NMR spectra. Copy the following table twice and fill it in once for your liquid unknown and again for your solid unknown.
Chemical
Shift
Area Relative
Area
Possible
# of H
Observed
Splitting
# of
Neighbors
Possible types of H
2. What possible structures or structural fragments are suggested by your H–NMR?
3. Harold and Erma started by taking a melting point of their solid, unknown X. However, when interpreting their data, is the melting or boiling point of the unknown going to be the piece of data that they use first to begin to identify the unknown? Explain.