WJEC Unit 3 Chemistry (10/6/2024)

Thoughts?
I thought it majorly went well, but I definitely did not go over the boron nitride and the graphite question so there's definitely like 2 marks down the drain for me 💀 the calculations were fine as well as the QER but I almost forgot the inert pair effect for the NH3 and PF3/PF5 question and had to scribble out my original answer and write it again 💀 i guess i'll have a better score if the markers like my yapping?

not confident at all. didn’t realise that q was about the inert pair effect 😩 i found the calculations awful. the boron nitride and graphite question was one of the ones i felt confident in lmao

for the NF3/PF3/PF5 questions i was waffling on about octet expansion which NF3 cannot do??

that’s what i said

oo maybe it is that then, i wasn’t too sure so i just wrote down the first thing i thought of

It is octet expansion and not inert pair effect

for the NF3/PF3/PF5 questions i was waffling on about octet expansion which NF3 cannot do??

brillianttt

for the MnO4- and Fe2+, the colour change to show its finished is purple to colourless but would the colour of Fe3+ also be shown in the end point?

I did think that, I just put colourless to pink anyway

for the MnO4- and Fe2+, the colour change to show its finished is purple to colourless but would the colour of Fe3+ also be shown in the end point?

It’s purple to pale pink

oh no its 2 more marks lost

Purple to pale pink

I forgot what the actual question was now, was it the colour change of the manganate or the colour change of the solution? If the latter the solution would have started off colourless as the manganate was in the burette. Either way I got it wrong anyway

Does anyone remember any answers they got for the calculations?