How is the relative molecular mass of a compound found form its mass spectrum?
You need to look at the molecular ion peak – that’s the one with the highest m/z value the furthest to the right, in case you didn’t already know. Be careful though, there might be a really tiny short peak at the end one or two m/z values further right from a taller one – you want that tall one, not the tiny one. Can’t quite remember why the tiny one is there – as far as I’m concerned, it’s just to make life difficult for chemistry students!!!!!!!!!
