Chemistry practical 34 today

[Z.S.M]

How'd it go?
Were all of you able to complete it?
Threshhold?

 

[XPFMember]

MrAnon and all others
AsSalamoAlaikum Wr Wb

Discuss it here..
for now only the difficulty level. Answers, etc please wait a few hours.

 

[MrAnon]

Papers was comparatively easy. I did question 2 first.

 

[XPFMember]

rizwaan AOA WR WB

Please no discussion of answers. DO so after about 24 hours.

Thank You.

 

[rizwaan]

what was the % uncertainty?
what was the units in the table for rate?

 

[Z.S.M]

Don't remember uncertainity.
Units of rate are per second (s^-1)

 

[arsalan116]

what were the cations ??/

 

[Beaconite007]

what was the % uncertainty?
what was the units in the table for rate?

my uncertainty was something like 3.56. m not sure if its correct

 

[Z.S.M]

Sulphate in FB5 and FB7
sulphite FB6

 

[Beaconite007]

wat were the cations??????

 

[Z.S.M]

my uncertainty was something like 3.56. m not sure if its correct

We had to calculate the uncertainity
(2/ mean) x 100

 

[arsalan116]

those were anions

 

[Z.S.M]

those were anions

ohhhhhhh sorry........ my mind is elsewhere... sorry sorry.....
they were Fe^2+
NH4^+
Mg^2+

 

[arsalan116]

oh thank God... mere bhi yehi aye

 

[arsalan116]

the graph was directly propotional ?

 

[rizwaan]

does the line pass through origin?
has anyone got any anomalous point?????

 

[Z.S.M]

does the line pass through origin?
has anyone got any anomalous point?????

it does.
two anomalous points.

 

[rizwaan]

what were the initial concentration of H2O2 that is what hav you done to get the answer? remember thet the total volume was 130 cm3.

 

[ICTloverz]

Mine uncertainity was also around 3 or 4 not sure..

 

[Z.S.M]

what were the initial concentration of H2O2 that is what hav you done to get the answer? remember thet the total volume was 130 cm3.

(vol. in experiment/130) x 0.23
for both experiments
What did you guys do?