Chromate and dichromate ions in equilibrium

[gracy]

Homework Statement

:-Why in equilibrium equation of potassium dichromate and chromate give below (in point 2.Relevant equations )there is H2O with dichromate ion but not with chromate ion, rather 2 hydrogen cation is present?[/B]

Homework Equations

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The Attempt at a Solution

:-I think it is something related with solubility .potassium Dichromate is soluble in water and potassium chromate is not.But i am not getting how this makes sense?Please help[/B]

 

[Bystander]

The attempt at a solution:-I think it is something related with solubility .

No.

potassium Dichromate is soluble in water and potassium chromate is not.

Both are water soluble. This won't get you anywhere.

Ignore the notes in red in the chemical equation and just look at the stoichiometry between the right and left hand sides, counting H, O, and water.