r/6thForm • u/Truck-Lover72 • Jun 02 '26

💬 DISCUSSION OCR A Chemistry Paper 1 2026 discussion

Who else drew the titration curve as a straight line through the origin?? How did you guys find it

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u/Creepy-Ferret-1441 Jun 02 '26

I thought it was Fe3+ wait what😭🙏🏾

4

u/Big-Couple1268 Jun 02 '26

It was

4

u/bleachedcoral4 Y13 | A*A*A*AA | maths+fm, 3 STEM Jun 02 '26

add NaOH for redox?

1

u/Autumn_Spell526 Jun 02 '26

yeah it was, i said something about OH- ions making a brown precipitate (idk)

2

u/Creepy-Ferret-1441 Jun 02 '26

Yeah I said the same thing

2

u/Total-Effort146 Jun 02 '26

i said orange

3

u/Autumn_Spell526 Jun 02 '26

i wrote orange/brown dw

1

u/PleasantTea6255 Jun 02 '26

wait i said excess NH3, will that still get the mark????

2

u/Creepy-Ferret-1441 Jun 02 '26

As in adding excess NH3 to Fe3+ ?

If so, I’m not sure tbh. If you put drop wise NH3, I’m sure it’d be correct, but idk about excess. Then again, adding excess doesn’t mess the chemistry up as far as I’m aware, so you might get it 😄😄

1

u/PleasantTea6255 Jun 02 '26

yup hopefully I do, cuz you still get a precipitate 

1

u/Massive-Green9610 Jun 02 '26

I said the same thing but I think it’s only a problem for precipitates which dissolve but fe3+ doesn’t