Question

Medal and fan
Can someone explain to me what catalysts do in a titration if they don't affect a system at equilibrium?

Thanks(:

Answer 1

in the case of a redox titration, acid catalysts are used to make sure the oxidizing agent undergoes complete reduction, rather than partial reduction. If not, you'll get different endpoints, and your stoichiometry won't work out.

Answer 2

i'm guessing you have a titration using \(KMnO_4\) and an acid catalyst?

Answer 3

Nope. It's actually a multiple choice question. I was trying to relate your answer to the given answers.
A. they decrease the concentration of the product
B. They act as buffers
C. They decrease the concentration of an intermediate reaction
D. They increase the rate at which a reaction reaches dynamic equilibrium

Answer 4

i'd go with C, since an intermediate reaction is probably an unwanted byproduct. If you reduce the chances for competing reactions, you get more reliable data

Answer 5

Yeah that's true. I was thinking about how you were talking about a redox and decreasing the concentration of the intermediate action will give the system a better chance at a complete redox. Right?

Answer 6

That's all that makes sense to me. An intermediate reaction would result from partial oxidation, so the situation still fits. I'm pretty confident in C

Answer 7

Thanks again (:

Answer 8

I think it was D… I had the same one

Answer 9

Yeah, it wasn't C. However, I prosed an argument to my teacher, I'm waiting for his reply.

Answer 10

Yeah I answered D and it was right but I was torn so I don't have an explanation haha. We have a lot of the same questions

Answer 11

Do you take AP Chem?

Answer 12

Yep!

Answer 13

Online then yeah?

Answer 14

yeah :)

Answer 15

an online AP Chem class is extremely hard ha

Answer 16

Heck yeah it is. Plus, my teachers really aren't much help whatsoever.