Titration Chemistry Problem: How to Calculate Volume and pH at Equivalence Point

AI Thread Summary
The discussion revolves around a chemistry problem involving the titration of hypobromous acid with sodium hydroxide. The user seeks guidance on calculating the volume of NaOH needed to reach the equivalence point, as well as determining the initial pH of the hypobromous acid solution and the pH at the equivalence point. They express difficulty in identifying the appropriate formulas and concepts, such as stoichiometry and pH calculations, necessary to solve the problem. The user mentions their dislike for chemistry and their desire to avoid it in future exams, highlighting the urgency to understand this particular exercise. Overall, the thread emphasizes the need for foundational knowledge in chemistry to tackle titration problems effectively.
YoungStudent
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Sorry to disturb. I'm really bad at chemistry and i was hopping i could find some help...
My major doubt is about Titration for now and how to find what is asked even if i got the data needed.

Homework Statement



25.0 cm3 of 1.00 x 10-1 mol dm3 hypobromous acid ( HBrO ) solution is titrated with an aqueous solution of sodium hydroxide, NaOH(aq) with a concentration of 8.00 x10-2 mol dm-3


Homework Equations



Ka for hypobromous at 25º : 2.00 x 10-9
pKw of water at 25ºC : 14.0


The Attempt at a Solution



1-Calculate the volume of sodium hydroxide that must be added to reach the equivalent point?

2-Calculate the initial PH of the solution Hypobromous acid at 25º?

3- Calculate the PH at the equivalence point of the titration at 25º?



rather than the answers i would like someone to help me with which formulas i should use to solve it.

Thx in advance.
 
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You have nicely used the template to dodge the first homework rule of the site - you have to show your attempts at solving the question to receive help.

Browse this site: http://www.titrations.info/ - it contains answers to all your questions (and more).
 
Borek said:
You have nicely used the template to dodge the first homework rule of the site - you have to show your attempts at solving the question to receive help.

Browse this site: http://www.titrations.info/ - it contains answers to all your questions (and more).

I did not asked for the answers i just don't have my template with the formulas, therefore i don't know which ones to use
 
But you were taught some equations used to calculate pH, weren't you? You were also taught something about stoichiometry, about reaction balancing - these are the building blocks that are required to solve the problem.
 
Chemistry is the only subject i really dislike in school but i have to do it, my media from 0-100 would be near 90 without chemistry, but it lowers it to 75.

Therefore i decided that i would not take it to the final exams, but the teacher decided that based on this type of exercises he will do a last test.

The exercise isn't even an homework, i found it in a school exercise book, but the method to solve it wasnt there and i haven't got no idea how to do it. I pass the exame and I am done with chemistry.
 

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