- Messages
- 341
- Reaction score
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- Points
- 53
Mine was 54.6 i wrote the same improvement as you kept thinking about the lid thing in the last minutes ended up writing sth about loss of Co2 which is wrong
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0.04what about the maximum error for volumetric flask?
Ohh..we were given 20min extra due to gas problem so we had a lot of time for this questionMine was 54.6 i wrote the same improvement as you kept thinking about the lid thing in the last minutes ended up writing sth about loss of Co2 which is wrong
33Which variant are you talking about?
What was the anion in question 2?..I wrote unknown and its wrong
But there was no effervescence I repeated it 2-3 timesCo3
Carbonate
Ohh and how did u calculate percentage purity...I repeated it and covered the top of test tube with thumb and then i saw bubbles and pressure was building up.
Many students messed up we had to multiply by 10 I'm pretty sure because we used 25cm3 and the volume in flask was 250cm3I am not sure about third because i might have messed up in that,rest is same as mine.
Impurities does not react with sulphuric acidwhat did you assume about the impurities?
Which volume?what volume did we have to use?
i think i multiplied it by 4 the no of moles,dammit.Took volume as 250 instead.Which volume?
Ohhi think i multiplied it by 4 the no of moles,dammit.Took volume as 250 instead.[/QUOTE
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