Hi, thanks for the feedback. I'm really glad the videos are useful! For that question I was using those % to illustrate how abundance of atom isotopes affects abundance of an X2 molecule. I knew that 3/4 of all chlorine atoms is 35 and 1/4 is 37. Sometimes they tell you this in the question (or tell you its 75% or 0.75). For exam questions, Sometimes you need to memorise those numbers, occasionally they tell you. I suggest that that is the most common isotopes focus, so I think you should remember it
@@chemistrytutor Ohh right, so it’s just something you need to remember and know for the exams. I was just slightly confused as I thought you had done some calculation to get 3/4 of 35 chlorine. Thank you so much for your help! It makes much more sense now! Also if you haven’t already I would really appreciate videos on the electrode potentials and cells topic and transition metals as I struggle with those topics the most.
Hi, yes, this video will be suitable for any exam board. I teach AQA so I always make sure it covers everything needed for AQA. All exam boards are at least 95% the same though. The main differences between them is not the content they include, but rather how they structure the course, what topics are on each exam and the question style
@mar-bv7nw electron gun and electron impact are different names for the same thing. Depending on the machine, a sample is often injected into a separate ionisation chamber before it drifts through the vacuum into the electron gun chamber
@@chemistrytutor just another question, for mass spec calculations, when avogadro constant is involved, how would you know if you should divide or times the value by the constant. In different question sometimes you have to divide sometimes you have to times but i dont get why?
You are amazing!!! Thank you so much. Love from Iraq
You're welcome. Hope you're still enjoying chemistry!
@@chemistrytutor I truly am Thank you sir.
Hey, I love your videos!
But I am quite confused as to where you have gotten 3/4 of 35 chlorine at 23:30?
I would really appreciate the help!
Hi, thanks for the feedback. I'm really glad the videos are useful!
For that question I was using those % to illustrate how abundance of atom isotopes affects abundance of an X2 molecule. I knew that 3/4 of all chlorine atoms is 35 and 1/4 is 37. Sometimes they tell you this in the question (or tell you its 75% or 0.75). For exam questions, Sometimes you need to memorise those numbers, occasionally they tell you. I suggest that that is the most common isotopes focus, so I think you should remember it
@@chemistrytutor Ohh right, so it’s just something you need to remember and know for the exams.
I was just slightly confused as I thought you had done some calculation to get 3/4 of 35 chlorine.
Thank you so much for your help!
It makes much more sense now!
Also if you haven’t already I would really appreciate videos on the electrode potentials and cells topic and transition metals as I struggle with those topics the most.
@@alizazulfiquar8999 you're welcome!
I've done some question walkthroughs:
ruclips.net/video/gnPbHd78MmI/видео.html
ruclips.net/video/S_PdwSjT5Us/видео.html
ruclips.net/video/tT44pTzruYc/видео.html
ruclips.net/video/9hK7EUWJPh4/видео.html
@@chemistrytutor
Thank you so much!
Greetings, I am struggling to understand the M+, [M+ 1] & [M+ 2] concepts. Would you please consider uploading a video for that?
I'll try to pick some exam questions to go through that have an element of that to them 😀
@@chemistrytutor have you made it yet?
Hi, you havent made a video on Infrared Spectroscopy, right? I'm doing OCR A.
I have one... ruclips.net/video/-wJgEOwtyNo/видео.html
It comes after the chemical testing section
You deserve million subscribers
Thank you 😊
Glad they're useful - do share the resource with anyone you think will benefit!
He really does!
@@sweetmuna 😁
You are a literal god! Thank you so much!
Thanks! I really appreciate knowing they're useful!
Amazing video !! very helpful : )
Excellent! I'm really glad you like it. I've got lots more so I'm sure you will find something useful there too 😀
Your videos are very helpful, thank you!
Glad you like them!
Thanks for all your work!
You're very welcome 😀
This video for edexcel ?
Hi, yes, this video will be suitable for any exam board.
I teach AQA so I always make sure it covers everything needed for AQA.
All exam boards are at least 95% the same though. The main differences between them is not the content they include, but rather how they structure the course, what topics are on each exam and the question style
Sir quick, Cristiano or Messi?
Both are amazing players!
Messi for the dribbling, Ronaldo for the athleticism - particularly heading.
Ultimately, Messi is more fun to watch I think
hiii why does the sample need to be vaporised in an electron impact ionisation process
The sample must be a vapour to drift through the mass spectrometer (this is the 'flight' in time of flight mass spectrometry)
@@chemistrytutoris it not already a vapour when it’s injected through? Like in electro gun ionisation? Or am I mistaken
@mar-bv7nw electron gun and electron impact are different names for the same thing. Depending on the machine, a sample is often injected into a separate ionisation chamber before it drifts through the vacuum into the electron gun chamber
@@chemistrytutor ah i see thank you!!
@@chemistrytutor just another question, for mass spec calculations, when avogadro constant is involved, how would you know if you should divide or times the value by the constant. In different question sometimes you have to divide sometimes you have to times but i dont get why?
you mistakenly said the nuetrons is the total number of protons + nuetrons instead of nucleons
Thank you! Good spot!