Below is the IR spectrum of a solid sample that was taken by a student. Give TWO possible causes for the weak signals observed.

  1.  Below is the IR spectrum of a solid sample that was taken by a student. Give TWO possible causes for the weak signals observed.

2.  A student ran an IR spectrum of a liquid shown in A below, that had a strange feature indicating >100% transmission. The student realized that they had forgotten an important step, and after re-running the spectrum with the important step obtained spectrum B. What do you think the important step was?

  • Attachment 1
  • Attachment 2