pseudo rate law

[hanna_maillard3B]

can someone please explain pseudo rate law and why it's important

[Yvonne Du]

I was wondering the same thing. Dr.Lavelle mentioned it during class, but I am still confused.

[Shreya_Bharadwaj_1D]

I remember reading about it in the textbook but never really haering about it in class

[Salena Chowdri 1I]

So the pseudo rate law just allows easier analysis of the effect of one reactant. In this case, the other reactant(s) are in high concentration that they can be considered constant, and so k[high conc. reactant] is k'

[Ethan Yi 1K]

its more theoretical for a lab situation. we dont have any calculations with this i dont think

[Kriti Goyal 4K 19]

Pseudo rate law is just a method used to simplify second order reactions that have more than one reactants. You basically take one reactant in a very high concentration, so the second reactant seems insignificant compared to it and doesnt have a big impact on the rate law of the equation. Therefore the reaction can technically behave like a first order, though practically it is a second order reaction. Its done to make calculations easier.

[Matthew Casillas 1C]

How would we know if the reactant is in excess? Would that be told to us or would we just have to ballpark it based on looking at the concentration?

[Elle_Mendelson_2K]

We will be told I believe