You have a mixture of two solutions containing valuable metal ions, copper and s

Question

You have a mixture of two solutions containing valuable metal ions, copper and silver. The [Cu2+] = 0.011 M, and the [Ag+ ] = 0.78 M. You are interested in separating one metal from the other by adding chromate, but it is not important how (it does not matter which ion is precipitated and which remains in solution). To “separate” the ions, 99.99% of one or the other must be precipitated without precipitating any of the other.

a) Is this possible? Which ion will be precipitated and which will remain in solution?

b) If your answer to (a) is yes, what is the concentration of chromate ion necessary to precipitate the less soluble metal?

Explanation / Answer

You have a mixture of two solutions containing valuable metal ions, copper and s

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