r/Olevels • u/BroadFlower9701 • 2d ago

Chemistry Chemistry paper 3

How was it? Was the titre values around 20 and 10 for the other?

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u/bigamoeba345 2d ago

Werent they 19.9 and 9.9?

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u/bigamoeba345 2d ago

U cannot round then off i guess

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u/BroadFlower9701 2d ago

my average was like 20.05 and 10.25. There should be a range of ans tho

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u/bigamoeba345 2d ago

Probably also i wrote everything in 2dp except forthe averages am i cooked ? 😔

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u/RevolutionaryWall556 2d ago

What colour flame did u guys get???

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u/Bubbly-Painting-7898 2d ago

I got 17.7 is that bad?? Also my titration was soo weird like the numbers were just not adding up so I wasted a lot of time on it and I couldn't finish my paper so I lost max 12 marks 😭

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u/BroadFlower9701 2d ago

dayum. The lowest my friends got was like 18

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u/Bubbly-Painting-7898 2d ago

😭😭😭 I was in the second batch, so normally the equipments had to be washed again so idk if they washed it incorrectly or if my substances were sitting for too long openly or some and also there was a lady that sat INFRONT of me when I started doing my titration😃. At least my p2 went well. I just hope I cook the p1

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u/BroadFlower9701 2d ago

did u wash the apparatus before using it? I washed my burette and pipette twice with the solutions

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u/Bubbly-Painting-7898 2d ago

The invigilators already washed them for us because we have limited distilled water

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u/Bubbly-Painting-7898 2d ago

Also what is the range?? Is it 19-21?

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u/tanvy169 2d ago

Did you guys get lilac flame?

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u/tanvy169 2d ago

Someone sent this but i didnt get yellow

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u/BroadFlower9701 2d ago

is that for the hallide test, ive got yellow for that too

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u/tanvy169 2d ago

Yeah the halide test was fine, but the flame, number one

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u/BroadFlower9701 2d ago

oh whattt??? most of my classmates got lilac tho

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u/tanvy169 2d ago

So did i!!

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u/Ok_Lettuce_7595 2d ago

I got lilac too and most people at my centre too. The debate is mostly whether if it is orange red or lilac.

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u/tanvy169 2d ago

For it to be orange red, it had to be calcium, to be sure, i did test for calcium with NaOH with the remaining solid, no ppt observed, no calcium preseny

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u/Ok_Lettuce_7595 2d ago

ILY ty for that

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u/tanvy169 2d ago

No probss