What occurs (i) when #"barium nitrate"# solution is mixed with #"sodium sulfate"# solution; and (ii) when #"copper(II) nitrate"# is mixed with #"sodium oxalate"#?

1 Answer
anor277
Dec 9, 2017

Well #BaSO_4# is pretty insoluble.....

Explanation:

And thus addition of a soluble barium salt to a sulfate salt should result in precipitation of barium sulfate....

#Ba^(2+) + SO_4^(2-) rarr BaSO_4(s)darr#

#K_"sp"(BaSO_4)=2.45xx10^-4#...

As I also recall, #"copper oxalate"# is pretty insoluble, and so...

#Cu^(2+) + C_2O_4^(2-) rarr CuC_2O_4(s)darr#

#K_"sp"("copper oxalate")=2.16xx10^-10#...

#K_"sp"# values are quoted under standard conditions....and we could use these data to provide gram solubilities of each salt under given conditions....

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