spoinkytheduck
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Can anyone help me with this question on mass spectrometry.. I'm a bit stuck...

State how the relative molecular mass of a covalent compound is obtained from it's mass spectrum.
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charco
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(Original post by spoinkytheduck)
Can anyone help me with this question on mass spectrometry.. I'm a bit stuck...

State how the relative molecular mass of a covalent compound is obtained from it's mass spectrum.
If you are a 'bit' stuck on this question I suggest you read up on the absolute basics of mass spectrometry
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spoinkytheduck
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(Original post by charco)
If you are a 'bit' stuck on this question I suggest you read up on the absolute basics of mass spectrometry
I know its veery basic ... I just dont get the covalent compounds bit... do you just add up the relative atomic masses of each of the atoms in the molecule... (as I guess the molecule is split up due to losing the electron(s) that keep them together)...????
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charco
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(Original post by spoinkytheduck)
I know its veery basic ... I just dont get the covalent compounds bit... do you just add up the relative atomic masses of each of the atoms in the molecule... (as I guess the molecule is split up due to losing the electron(s) that keep them together)...????
The peak at the highest m/z is the molecular ion [M]+
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chemicalguy
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Covalent (organic) compounds can get fragmented in a mass spec. In A2 you will learn how to use these fragments to identify compounds.

The mass spec gives info on m/z ratio and abundance. For an organic compound the peak with the highest m/z ratio is equivalent to the RMM of the compound as it has the mass of the unfragmented molecule. It's called the molecular ion.
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spoinkytheduck
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Ah, rightyho that makes sense...and yes I realise it was quite obvious...

Thank you!!!
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Gelflite
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(Original post by charco)
If you are a 'bit' stuck on this question I suggest you read up on the absolute basics of mass spectrometry
****ing beg
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charco
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(Original post by Gelflite)
****ing beg
Congratulations - you win the necrophiliac of the month award

this thread died four years ago ... :eek:
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Donladmodge
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Your mum ****s horses
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RoyalBlue7
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Grave diggers :rolleyes:
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charco
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(Original post by Donladmodge)
Your mum ****s horses
You good friends of my mum like?
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xxFelicitous
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Damn...10 years ago? Bloody hell and here i am tryna get an answer to that same question😂Guess everyone heres probably got degrees and top shot jobs and probably married by now🤣🤣
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shmitpost
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Lmao fr
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annabananaaa
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actually tho, I'm just trying to pass my last chem exam in high school lmao
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