AQA A level Chemistry 2020 Paper 1 (first half) walkthrough

AQA A level Chemistry 2020 Paper 1 (first half) walkthrough

[@user-nc4pc3hv2n]

such an underrated channel, these help so much

[@daviesa-levelchemistry1210]

Thanks v much :-)

[@maz_8376]

Absolute lifesaver thank you 😩🥺

[@Naomi.c773]

very helpful thanks!

[@EsotericMedic]

Thank you!

[@saggyqueefius9172]

thanks

[@iyshi]

hi sir, could you explain why we divide the propanoic conc. by 4 even though the volume increases x4? thank you

[@charlotte52yearsago84]

I’m pretty sure he did this part wrong and it’s just a coincidence that 0.5/4 = 0.125. I wish the channel would reply to clarify.

[@JT-sl3yq]

Concentration is moles / volume. So if the volume increase then the concentration is gonna decrease

[@iyshi]

@@JT-sl3yq ohh ok thank you!

[@ishmazafar]

Hi there. I was wondering if you do private tuition? Is there an email to contact please? Your videos are super helpful but I need extra help please.

[@ty-qo5ji]

For 2.3 why cant you say they have the same electron configuration

[@y.ajmal1304]

MS doesn't allow it

[@ty-qo5ji]

@@y.ajmal1304 Yeah I know that, sorry I didint make it clear but why doesnt the markscheme allow it

[@y.ajmal1304]

@@ty-qo5ji My guess is that it's too vague as ions of different elements can have the same configuration. Same proton no and different neutron no can only occur with isotopes.