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Chemistry pp ( 31) grade thresholds ..

damn.. i see where i messed up... i put it in 20 cm3 (thought it was the overall volume).. forgetting the volume of the other reagents.... hw da fuq did i do that :S..
- Carty
- Post #20
- May 15, 2012
- Forum: A-Levels
C
Chemsitry Paper 31!!!!

didn't the question say to divide by the total volume which was 20 cm3????? Then it would be 2.5*10-5* 1000/20 to give you 1.25*-3.... the question actually said divde by the total volume.. Didn't it?
- Carty
- Post #52
- May 13, 2012
- Forum: A-Levels
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Chemistry pp ( 31) grade thresholds ..

the iodine was in a 2:1 ratio with the S2O8.. plus i swore we were supposed to put the moles in the 40 cm3
- Carty
- Post #16
- May 13, 2012
- Forum: A-Levels
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Chemistry pp ( 31) grade thresholds ..

i got 0.125 mol dm of iodine..
- Carty
- Post #15
- May 13, 2012
- Forum: A-Levels
C
hey. did u get all the info for the chem practical 2moro?

hey. did u get all the info for the chem practical 2moro?
- Carty
- Profile post
- May 10, 2012

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