Which of the following molecules is chiral?  

What are the predicted m/z values (masses) and relative heights of all the molecular ions of 2,3-dichlorobutane that would appear on a mass spectrum (excluding peaks produced by 13C and 2H)?          

Which of the compounds below fits the following C-13 NMR spectrum?        

For the following problem, use a separate sheet of paper to solve the problem and then upload your solution at the following link: https://canvas.dccc.edu/courses/28693/assignments/576810   1.        2.        3.        4.   

Which of the following breaks down acetylcholine (Ach) thereby, removing it from the receptors?

Which of the following can be distinguished from the others under a light microscope?

What is the name of the valve circled on the diagram?

When 1,3-butadiene reacts with CH2=CHCN, which of the terms below best describes the product mixture?

What type of carbon environment does not generate a signal in the DEPT-90 spectrum and gives a negative peak in the DEPT-135 spectrum?    

A chemist performs an organic synthesis where the complete oxidation of sec-butanol to the ketone, 2-butanone, is a necessary step.  Using IR, which of the following would provide the best evidence that he successfully completed the oxidation?