Question 04:
Dichromate(VI) ions (orange) can be converted to chromate(VI) ions (yellow) by adding water. The equilibrium below can be established. It is observed that a certain reaction mixture is bright orange. What does that observation tell us about the value of K?
Cr2O72-(aq) + H2O(l) ⇌ 2CrO42-(aq) + 2H+(aq)