Discuss the effect of pH on `CrO_(4)^(2-)` ?

Explanation

To discuss the effect of pH on the chromate ion (\(CrO_4^{2-}\)), we need to understand how changes in pH influence the equilibrium between chromate and dichromate ions (\(Cr_2O_7^{2-}\)).

### Step-by-Step Solution:

1. **Understanding Chromate and Dichromate Ions**:
- The chromate ion (\(CrO_4^{2-}\)) is typically yellow in color.
- The dichromate ion (\(Cr_2O_7^{2-}\)) is orange-red in color.
- These two ions are in equilibrium with each other in solution.
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