Is mentioning temperature crucial as this is not in the spec. Will we get marked down for not writing the temperature. Some reagents also do not have 'concentrated' written before it in the spec
@@keke835 trust me when I say you can even learn all the routes in an hour. Just get some paper and keep copying them out. There are also a few that repeat. It’ll make you sleep better in the summer so you might aswell. Good luck for tomorrow 😅
Hi, would you need to know the detailed mechanism behind the reaction of an acyl chloride and a primary amine to give a secondary amide?For the OCR A specification.
in the exam for esterification and reverse esterification (hydrolysis) am i supposed to put down heat or under reflux because in the textbok it says to warm for esterificatiion and hydrolysis is reflux??
This isn't related to the video but what does it mean 'to distort an ion'? I was reading through my notes and read that a smaller and more highly charged positive ion is able to distort negative ions more easily and I was confused as to what it meant by 'to distort negative ions'. Thanks 😊
If you imagine a net and a ball on the net the net curves and stuff when put a heavier ball the lighter ball kinda gets attracted it's like a gravity demo the positive ion distorts messes/interacts with The electron cloud this can change the bond angles and lengths within the bond
Smaller and more high charged means it's stronger and lighter so it's even easier for it to be attracted by the electron cloud. Positive is always attracted to negative positive charges are the absence of electrons so this cause interference
![OCR A-Level Chemistry A June 2018 Paper 3 [Walkthrough and Tutorial]](/img/1.gif)
ur a legend among us chem students - thank u for what u do 🙏
This is the one video in which i set speed to 0.75x instead of 1.75x
A lifesaver, THANK YOU
Is mentioning temperature crucial as this is not in the spec. Will we get marked down for not writing the temperature. Some reagents also do not have 'concentrated' written before it in the spec
im so cooked
No you’re not, you can actually learn all of these in a day!
@@rubiksworld2170 I learned all of AS yesterday but A2 is looking long ngl
@@keke835 trust me when I say you can even learn all the routes in an hour. Just get some paper and keep copying them out. There are also a few that repeat. It’ll make you sleep better in the summer so you might aswell. Good luck for tomorrow 😅
@rubiksworld2170 I've actually already memorised it all lol.
@@keke835 nicee one. I’m going to go to sleep and wake up at like 5 to spam flashcards, I hope the exam isn’t too bad 🙃
ok i've done this a few times, but this time i really mean it as i neeeeeded this
thank mr chemguy
Horep You’re welcome!
Please could you do a video on A2 practical techniques such as recrystallization and filtering under pressure. Thanks 😊
Sinead Ryan Already done. Check out my PAG playlist 👍
Hi, would you need to know the detailed mechanism behind the reaction of an acyl chloride and a primary amine to give a secondary amide?For the OCR A specification.
Fateyha Begum No but you could be asked to suggest part of it or maybe they’ll give you the before and after and you put in the relevant curly arrows
MaChemGuy Ok thank you for answering my question and i greatly appreciate your videos they are very helpful!
I learnt that the catalyst for reducing CN to NH2 is platinum or palladium.
in the exam for esterification and reverse esterification (hydrolysis) am i supposed to put down heat or under reflux because in the textbok it says to warm for esterificatiion and hydrolysis is reflux??
Jazz Tan Heat is fine for both
This isn't related to the video but what does it mean 'to distort an ion'? I was reading through my notes and read that a smaller and more highly charged positive ion is able to distort negative ions more easily and I was confused as to what it meant by 'to distort negative ions'. Thanks 😊
If you imagine a net and a ball on the net the net curves and stuff when put a heavier ball the lighter ball kinda gets attracted it's like a gravity demo the positive ion distorts messes/interacts with The electron cloud this can change the bond angles and lengths within the bond
Smaller and more high charged means it's stronger and lighter so it's even easier for it to be attracted by the electron cloud. Positive is always attracted to negative positive charges are the absence of electrons so this cause interference
Sir, can number 2 be, halogen (Cl2)
That would form a dihaloalkane