S3.2.8 Mass spectrometry (HL)

[@glassw1ng]

Many years late but thank you so much for everything, I’ve watched literally all of your videos and they’ve helped so much

[@MSJChem]

Glad I could help.

[@fanoii]

ur videos are fabulous... My chem teacher also says ur contents are the best ! thank you for carrying out the whole curriculum! Now, I must study for the mocks for Christmas 😂

[@MSJChem]

Good luck in your mocks and thanks for the feedback.

[@jaydenliu3090]

hey just finished reviewing all of the videos from each topic and i would like to thank you as I feel much more prepared for the exams, One video you should make is showing what each table in the data booklet is used for as there are so many I forgot which one is used for what. And it takes too long to search through videos what they are used for.

[@MSJChem]

This is a good idea - I might do it before the 2019 exams if I get time.

[@pepalepi4305]

In 3:15 , how 43 is for C2H3O+ because we don't have this value on the booklet?

[@meddhanshshroff212]

videos have been incredible- getting me to the 6 in chem HL 👍👍👍

[@Mol2412w3]

do i really need to learn how the mass spectrometry work in order to find a compound structure?

[@MSJChem]

Not really but it might help you understand the fragmentation patterns.

[@shinobatron817]

Why do you subtract the peak from the molecular ion peak?

[@MSJChem]

To find the fragment lost.

[@pepalepi4305]

Hey mister. How to identify the im molecular ion peak?

[@MSJChem]

It’s the largest peak on the far right of the spectrum - there will be a very small peak to the right of it which is the M+1 peak.