Titration Comp (1 Viewer)

[Sirius Black]

Has anyone heard of this competition? What are the keys(or tricks) to obtain accurate results for the solution of unknown concentration?

 

[iambored]

rinse out the things with the right liquid before you start
read everything off very carefully
add the stuff until it just goes pink without disappearing - practise doing 1 drop at a time

 

[Dreamerish*~]

we're so gonna win it

- make sure you don't pour chemicals back into their original containers
- when not in use, make sure your equipment is neatly organised and placed in safe places
- rinse equipment well with the solution that you're going to use in them
- lots and lots of practise
- keep shaking your beaker/conical flask while you're letting the unknown chemical into the acid

 

[Slidey]

Dammit. I won't have covered titration before in time.

Bah humbug!

 

[miss_b]

we're so gonna win it

- make sure you don't pour chemicals back into their original containers
- when not in use, make sure your equipment is neatly organised and placed in safe places
- rinse equipment well with the solution that you're going to use in them
- lots and lots of practise
- keep shaking your beaker/conical flask while you're letting the unknown chemical into the acid

Not necessarily. You don't wash the conical flask or the volumetric flask with the solution you are going to put into it because it alters the number of mole of the substance you will put into it.

 

[Dreamerish*~]

i mean except for those thing
but then you should keep them dry, otherwise the water will dilute the solution.

 

[miss_b]

i mean except for those thing
but then you should keep them dry, otherwise the water will dilute the solution.

Keep what dry? The conical flask and volumetric flask?

 

[xiao1985]

concial flask need to be rinsed with distilled water, and do not need to be kept dry...
oh, as regard to tricks in winnin it...

find out which team is from shore and screw up their result...

 

[~ ReNcH ~]

When's the titration comp on?
My class is half-way through Topic 2 atm.

 

[Dreamerish*~]

it's in june

 

[~ ReNcH ~]

it's in june

Ok...that'll definitely be fine then...so that'd be around the mid-->end of Term 2??

Btw. is there an information page on the Net for the Titration Comp?

 

[Dreamerish*~]

not sure... try google it
i have a sheet of titration info and instructions if you want i can scan it.

 

[Templar]

To get to 4 decimal accuracy is much more about experience and luck than any specific skills on the competition day.

 

[miss_b]

concial flask need to be rinsed with distilled water, and do not need to be kept dry...

Yeah that's what i thought...just had a SAC on that stuff today..

 

[miss_b]

To get to 4 decimal accuracy is much more about experience and luck than any specific skills on the competition day.

Decimal points? Don't you guys use significant figures?

 

[xiao1985]

Decimal points? Don't you guys use significant figures?

in titration comp, ur answer would be submitted in this way ( i think):

x.xxxx
so 4 dp...

 

[Sirius Black]

Thank you for so many suggestions, guys

another question about the results- wouldn't be better to use scientific notation (4 sig fig) eg x.xxx*10^n?

 

[KFunk]

Well, do you want to be scientific or not?

 

[Templar]

another question about the results- wouldn't be better to use scientific notation (4 sig fig) eg x.xxx*10^n?

No...they ask you to submit in the form x.xxxx, and your score is worked from there.

 

[Sirius Black]

what about if you get something like 0.00001M?