AS Chemistry Edexcel Unit 1 Ch 8 Organic Chemistry - Dr. Hanaa Assil

[@Extark]

Thanks you very much, I got the exam tomorrow and I learned the whole syllabus in a day. ❣

[@zoneesaleem1513]

watching this the night before my exam, and i would jus like to say you helped me through much with my revision and i wouldn't have come as far as i have without you may ALLAH swt bless you inshallah

[@reine1958]

God bless you❤️ you are absolutely saving my chem grades!!

[@unknownsoul2279]

Thanku soo much u literally saved me 😢❤ lots of love and support keep making these videos

[@drhanaaassil-chemistryteac9433]

Thank you

[@mushroomravioli1406]

Thank you, you are God sent...an angel almost.

[@globglobpichu8373]

Thank you so much Ma'am Your explanations were very clear and I finally understand organic for unit 1 chemistry very well Please keep making videos You are truly my ultimate saviour ❤

[@reemamin1584]

thank you dr , keep making videos , it is helping us a lot

[@dana_qtr605]

in minute 21:00 isnt the first one Z since COOH is 45 and Cl is 35.5 so COOH has larger Mr?

[@byron197]

She didn't explain it very clearly. To determine the priorities, you have to first look at the atomic number of the atom that is bonded to the carbon. In the case of chlorine, it is directly bonded to a carbon, so you look at it. In the case of the COOH group, you look at the oxygen in the OH group, since it is the one bonded to a carbon. Then, compare their atomic numbers. In this case, chlorine has an atomic number 17 while oxygen has 8, so it takes the priority. In case you are comparing ones with groups, and you find out that the first atom bonded to carbon in each group is the same in each, just keep looking further down the group until the one bonded to the closest atom to the carbon has a greater atomic number than the other side you are comparing with. The mass number only comes into play when there are isotopes, and this is the last resort. If you find a carbon 14 instead of 12, only prioritize its side as again, a last resort. I know this is a late reply, but better now than never.

[@ALEVELS2025-Y]

@@byron197 Thank you sooo much!!!

[@ammy_dex]

mistake at 20:38 minute @Dr Hanna Assil

[@justsomeone2001]

Thank you miss, this was a good summary of organic chem 💓

[@thewierdmemes]

[@beeluenn]

I'm a bit late but does this cover everything we'd need to know on this topic?

[@LolwaA-q5q]

Hi miss Can you do a Q&A video for chapter 6,7,8 please? Thank you

[@mice7872]

i thought it’s not always true all E isomers are trans and all Z isomers are cis?

[@Trollfacevidz]

you saved me 700$ of tution!

[@primeroxx]

thank youuu

[@MohamedOsama-jj9te]

you made mistake 21:00

[@drhanaaassil-chemistryteac9433]

No mistake

[@ammy_dex]

@@drhanaaassil-chemistryteac9433 there is a mistake, you exchanged Z with E and E with .

[@hariskhaqan6383]