Consider the following peak heights for an unknown compound: a. What is the mas...

Consider the following peak heights for an unknown compound:

a. What is the mass (in amu) of the most abundant isotope of this molecule? In other words, what is the molecular weight calculated using the most common isotope of each atom?

b. How many carbons are there in this molecule? How can you tell? Note: MS calculations of the number of carbons may not be accurate. You should always consider the possibility of one more or one fewer carbon atoms than the calculated number.

c. Is there evidence of atoms other than C and H in this molecule? What are they, and how can you tell?

d. Is there an odd number of nitrogen atoms? How can you tell?

e. Is it possible in this case to have two N atoms and still weigh 176 amu?

f. If you assume the molecule is composed only of carbon, one chlorine and hydrogen, how many H’s are there in the molecule? How can you tell?

g. What is the likely molecular formula of this molecule?

h. Draw a neutral molecule with this molecular formula. (If you cannot do this, you have made an error or need to start again with one more or one fewer carbon. See b above.)

i. Can you tell for sure the structure of this molecule based on this MS