Infrared (IR) and Nuclear Magnetic Resonance (NMR) are two spectroscopic techniques you've encountered in organic chemistry I, CHM2210. In organic chemistry laboratory, IR and NMR are common tools used to characterize a given product. Consider what you learned in CHM22110, and select the concepts that you feel confident about: a. The theory behind NMR.
b. Identify functional groups based on IR absorptions.
c. I do not recall/understand much about NMR
d. Understanding (de)sheilding
e. correlate the intensity of a 1H NMR signal to the number of protons
f. Deduce the structure of an unknown given its molecular formula, IR and NMR spectra
g. Assigning 13C NMR signals to a given molecule
h. Assigning 1H NMR signals to a given molecule
i. I do not recall/understand much about IR
j. The theory behind IR
k. Identify splitting patterns

Electromagnets coils of wire paper clips picked up 10 3 15 6 20 9 25 12 ms. owens' class was studying magnets. ms. owens showed her students how to make an electromagnet using a nail, a d-cell battery, and plastic coated wire. the students wrapped the wire around the nail and then attached the ends to the battery. when they were finished, they tested their magnets by investigating how many paperclips their magnets could pick up. they also tested whether they could increase the strength of their electromagnets by using more coils of wire. they recorded the class average of their results in the data table seen here. ms. owens asked her students to graph their data in a line graph. how should the students label the x-axis on their line graph? a) size of battery b) number of paper clips c) number of coils of wire d) strength of electromagnet