- Messages
- 7
- Reaction score
- 0
- Points
- 11
Did anyone draw and fill their titration tables with a pencil. Is it allowed?
We are currently struggling to cover the operational costs of Xtremepapers, as a result we might have to shut this website down. Please donate if we have helped you and help make a difference in other students' lives!
Click here to Donate Now (View Announcement)
The titre value for step 1 was : 15.70 cm3
The titre value for step 2 was: 15.30 cm3
for both titrations almost the same..
yes ALhamdullilah...alright...omg u okay ??
i no they wrote wrong formula...so i wrote the structural formula for my calculation...in 1 formula they give 2 O and in the other 1 they give 4 "O"....The titre value for step 1 was : 15.50 cm3
The titre value for step 2 was: 22.55 cm3
The percentage by mass : 43% but don't worry, whosoever attempted this part will be given full marks as there was a misprint in the paper for the formula given.
The non metal was Nitrogen.
Fe2+ was in FB9.
The last part of salt analysis was that if KMnO4 was added to FB9, what happened.
You could write:
1) Colour change from purple to colourless.
2) Fe2+ will be oxidized to Fe3+ so red-brown ppt will be formed.
....i calculated the % error for pipette and burette and compared % error, for pipette was higher and the q was, one student did titration in a pipette instead of a burette so is it right? the answer was definately no...What was the answer for the last two parts of titration?
The part which talked abt pipette n burette measuring 25cm3?
N also what were the observations for the anion test?
Dude al my answers match yours except %mass and thts 73 % if you take the misprint.The titre value for step 1 was : 15.50 cm3
The titre value for step 2 was: 22.55 cm3
The percentage by mass : 43% but don't worry, whosoever attempted this part will be given full marks as there was a misprint in the paper for the formula given.
The non metal was Nitrogen.
Fe2+ was in FB9.
The last part of salt analysis was that if KMnO4 was added to FB9, what happened.
You could write:
1) Colour change from purple to colourless.
2) Fe2+ will be oxidized to Fe3+ so red-brown ppt will be formed.
What do you guys think the threshold will be for p34? Because alot of people I know weren't happy with it and had missed stuff, especially in Q2.
why not possible?it is an experiment right?and he gt the reading already. ;pIm sorry thats not possible
Guys Plz answer!!!Guys In the observations for anions in the table did you write observations fer each step or just what you saw in d end like in the step where u had to add kmno4 and then fb6 did u write colour change frm colourless to pink and then from pink to colourless when u add fb6 or just frm pink to colourless.???? Cause it was mentioned in the begging, show clearly when a change takes place in each step. Man I'm damned worried pls someone reply quick!!!!
For almost 10 years, the site XtremePapers has been trying very hard to serve its users.
However, we are now struggling to cover its operational costs due to unforeseen circumstances. If we helped you in any way, kindly contribute and be the part of this effort. No act of kindness, no matter how small, is ever wasted.
Click here to Donate Now