What precipitate forms when silver nitrate and potassium chromate solutions are mixed?

Jun 25, 2018

What else but silver chromate, an highly INSOLUBLE salt....?

Explanation:

And we could write the equation as...

$2 A g \left(N {O}_{3}\right) \left(a q\right) + N {a}_{2} C r {O}_{4} \left(a q\right) \rightarrow A {g}_{2} C r {O}_{4} \left(s\right) \downarrow + 2 N a N {O}_{3} \left(a q\right)$

...or the net ionic equation...

$2 A {g}^{+} + C r {O}_{4}^{2 -} \rightarrow {\underbrace{A {g}_{2} C r {O}_{4} \left(s\right) \downarrow}}_{\text{brick-red precipitate}}$

Nitrate salts are GENERALLY soluble, which is why we use the silver nitrate salt here to get the silver ion into solution....