Відео

question 4a). how is it less gas moles to the right?

Can you do walkthroughs for ocr b?

thank you so much for your help Sir 😊

For the double bond group, is it necessary to have it on the top for the optical isomer in 16biv or can you put it anywhere as long as the groups swap for the left box

🙏🙏

I dont get why you divided by 0.05 in q25a if both are in excess and none are limiting

Why is Cu (II) + I- not equal to CuI2

1:06:34 I'm no chemistry expert but i don't think it needs to be a drastic negative to be feasible at all temperatures. Temperatures bellow 0K are physically not possible as it would mean the particles have negative energy so if the required temp is any number that is negative I'm pretty sure its feasible at all temps.

Thank you!!!!

Why is there not a negative one charge on the empirical formula for thentramsition metal question 2:16

Why does nobody do ocr B paper walkthroughs?

For No.10 it says that it’s condensation of ammonia gas, would that not mean that it’s H2(g) + 3N2(g) = 2NH3(g)? Or is my equation wrong? P.s thanks for the video it’s great!

for 1:11:44 why dont we multiply 500 by avagadros constant. Condisering the units its kj divide by mols so to get rid of moles wont you times by 1 mol(avagadros) ?

Thank you! :)

1:06:40 Its impossible for T to be below 0K. Its like saying particles have -ve KE. But Thanks for the video! Really helpful

Thank you kind sir

When will u upload the rest please and thank you 🙏

Amazing

For question 7, if you weren’t given the options, is there a way to also find the number of carbons like you did for the 12 hydrogens? Please

at 2hrs 6mins why did you multiple mol by 5 for CaCO3 because if its 1:5 wouldn't you divide by 5?

Thanks boss

Question 9: The answer should be C as the nitrile group also gets hydrogenated to an amine group to give us an extra 4 hydrogens on top of the 4 extra hydrogens from the hydrogenation of the alkenes to give us 8 added hydrogens and so we have 4 x H2 for the equation, so we do 4 x 0.05 to give us 0.2 and then we do 0.2 x 24 to give us 4.80dm3 and hence C. I’ll remake a video on that question to make it more clearer. Thanks to @katarinajana3618 for pointing that out

For Q9 the answer is C

in question 4 as oxygen is O3 why do we still divide it by 32 as we would O2 it really confuses me as surely we should divide by 48

when are you going to upload part 2?

please do one for paper 2 and 3🙏

at 1:04:50 why did you assume delta h = t delta s @ChemKit

Bro please balance your audio .

For 5ci how are the moles of bromobutane the actual yield and not theoretical ?

my goat

Hi Can you do the other papers from this year

there's not a lot of views on it but sir this has helped a lot, so thank you!

for 7 tho, say we didnt know it was exothermic, how would we differentiate from it being pos or neg

This guys saving my brain cells

Will you do paper 2 and 3 too

Thank you. Please could you do one for paper 2?

Thank u soo muchh!!!!!

Thank you so much!!!!

Thank you!!!

This is great, could you do one on OCR B Salters pls

ty very helpful

Thank you so much, you explain everything really well. deserved my subscribe, keep it going!

Thank you so much this is really helpful , can you please do the 2021 and 2020 AS chem papers

thanks

Thanks

*MISTAKE IN QUESTIONS 9 AND 10* QUESTION 9) The answer should be D as I multiplied 2.41x10^24 by 2 instead of 3. The reason you multiply it by 3 is because you have 1 mole of Mg2+ and 2Cl- QUESTION 10) The answer should also be D, as chemical reactivity is not a viable explanation as the question asks about boiling points. The reason D is correct is because as we go down Group 7 the number of electrons start to increase, and so London forces also start to increase therefore more energy is required to overcome the Intermolecular (London) forces, and so it has a higher boiling point. Hopefully this cleared up any questions on the mistakes I made, and sorry about that I'll try my best to make sure this doesn't happen again. Also thanks to @erkanfnr5872 for pointing it out.

9 is D is 3x4x6.02x10^23 and 10 is D ?

thank you!! i’m going through past papers for revision for mocks and there’s some questions i couldn’t wrap my head around but this helped a bunch!!