persephone
Active Member
when we did titration my teacher was pretty relaxed but what were we supposed to do with out results? you know after the phenolphthalein changed colour. etc
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titration calculations (1 Viewer)
- Thread starter persephone
- Start date
smallcattle
Member
umm you suppose to calculate the cencentration of the unknown base??
lucyinthehole
Member
- Joined
- Feb 23, 2004
- Messages
- 256
use c1v1 = c2v2
sub in the things you know to figure out concentration of whatever it is you're trying to find the conc of (the whole point of titrations)
sub in the things you know to figure out concentration of whatever it is you're trying to find the conc of (the whole point of titrations)
aim54x
XccenTRiX
- Joined
- Mar 25, 2004
- Messages
- 452
- Gender
- Male
- HSC
- 2004
u have the exact amount of the acid used to neutralised the base.
write a balenced equa 4 d react.
work out how many moles of the of the secondary is present as u know the conc n vol of the standard
these r the ones u need i think.
n=cv
n=m/mw
its kinda hard to explain without everythin in front but i've had a go. ask further Q's if needed
write a balenced equa 4 d react.
work out how many moles of the of the secondary is present as u know the conc n vol of the standard
these r the ones u need i think.
n=cv
n=m/mw
its kinda hard to explain without everythin in front but i've had a go. ask further Q's if needed
lucyinthehole
Member
- Joined
- Feb 23, 2004
- Messages
- 256
no, cos say the ratio is 2:1, you just put 2(c1v1) = c2v2bobbie212 said:
tina_goes_doo
Pharmer in Training
It's still safer to use n=cv. Both my teacher and two tutors have said to use this during the HSC.
smallcattle
Member
yeah n=cv is more convenient and my teachers all liked this