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Chemistry: Post your doubts here!

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Yeah guys!!!!
Its paper 33!
I just dont now what went wrong!!?
I did exactly what the others did , but still ended up with this value!!
What might have went wrong!!
N whats the right answer!!!?
 
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Yeah guys!!!!
Its paper 33!
I just dont now what went wrong!!?
I did exactly what the others did , but still ended up with this value!!
What might have went wrong!!
N whats the right answer!!!?

Which question? The titration one fr step 3? Tht depends on what ur mass of CaCo3 was , mine was 2.03g and titration values were around 19.4
 
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hw come i got 4 for the titre value!!!!
Im sure i did it the right way!!!!
I mean ive been doing similar experiments through out the year and never got it wrong!!!
 
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I also got one of the halides wrong!!!
I wrote Bromine instead of iodine!!!!
So im really worried I lose the A*!!!
=(
 
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In AS practical 33 what was the answer to the last part of the first question regarding using higher mass.Was it yes or no?
Secondly what was the answer to the question in wh0ich they asked us about the oxidation state?
 
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In AS practical 33 what was the answer to the last part of the first question regarding using higher mass.Was it yes or no?
Secondly what was the answer to the question in wh0ich they asked us about the oxidation state?
I wrote it has no effect cuz its just a ratio. If mass increases , impurity also increases so their ratios will be same.

Their were 2 ox state questions , +2 and +4 I guess. I don't remember
 
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for Paper 2 if the question asks for the reagent of oxidation, i wrote Potassium Manganate (VII) solution while the answer scheme gave Manganate (VII) ions. Are they both accepted? What should i write?
 
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