How can I identify the molecular fomula, based on an m/z of 350.7897?

  • Thread starter Thread starter bellum
  • Start date Start date
  • Tags Tags
    Mass Molecule
AI Thread Summary
To identify the molecular formula based on an m/z of 350.7897, utilize tools like www.chemcalc.org to explore potential structures. Analyze the mass spectrum, focusing on the highest mass ion and the differences between peaks to deduce possible atom groups. Consider the nitrogen rule and fragmentation patterns to align with the other m/z values. Repeat this process for various fragment losses to construct the molecular structure. This systematic approach will help clarify the molecular formula.
bellum
Messages
2
Reaction score
0
Thread moved from the technical forums to the schoolwork forums
TL;DR Summary: I have the aforementioned m/z and a mass spec graph, my lecturer completely glossed over how to find the molecular formula so I'm stumped.

I have a mass spec with 4 peaks and the m/z value, how can I find the molecular formula.
 
Physics news on Phys.org
1000029274.jpg
 
Maybe this can help you

 
You have a very exact mass. Use www.chemcalc.org to find possible structures. Remember the nitrogen rule. Deduce possible structures and look if their fragmentation patterns fit the other m/z tops.
 
What do you think the highest mass ion represents (in most examples for students to solve, that is).
What do you think the difference between two peaks represents?
What group of atoms could that be?
Repeat for several of the fragment losses.
Build the molecule.
 

Thread 'Prove that evolution is constant (Provide at least two arguments to support your position)'

I don't get how to argue it. i can prove: evolution is the ability to adapt, whether it's progression or regression from some point of view, so if evolution is not constant then animal generations couldn`t stay alive for a big amount of time because when climate is changing this generations die. but they dont. so evolution is constant. but its not an argument, right? how to fing arguments when i only prove it.. analytically, i guess it called that (this is indirectly related to biology, im...
View full post »

Similar threads

Chemistry How can I find the molecular formula in this problem?
Replies
10
Views
3K
Expert Help with Mass Spectroscopy Homework: IR & NMR Analysis for Molecule B
Replies
2
Views
3K
Identify an organic unknown with only spectroscopic data
Replies
6
Views
5K
Chemistry Molecular mass of gaseous compound question
Replies
6
Views
8K
How Do I Calculate the Mass Proportion of Oxygen in the Air for This Reaction?
Replies
2
Views
2K
I Effective Hamiltonian to Rotational Term Values
Replies
0
Views
3K
How can I determine the shape of an oldie acid molecule?
Replies
1
Views
1K
Chemistry How to calculate pH at equivalence point using this alternative?
Replies
7
Views
1K
Stretching of a rotating spring
Replies
8
Views
2K
A Find Reduced Mass for Polyatomic Molecules
Replies
4
Views
2K

Hot Threads

Recent Insights

Back
Top