which species is most predominates?

[Smooth Operater]

---

Members do not see this ad.

on the basis of the following equations and constants, which of the statment that are given below, is true.

2 (CrO4)2- + 2 H+ <-----> (Cr2O7)2- + H2O K = 4.2e14
(Cr2O7)2- + H2O <------> 2 HCrO4- K = 3e2

A. (Cr2O7)2- predominates in acid solution
b. HCrO4- predominates in acid solution


The correct answer is HCrO4- . Is it b/c it has the biggest K value? Thanks

 

[Smooth Operater]

bump