Problem: Consider two solutions, the first being 50.0 mL of 1.00 M CuSO4 and the second 50.0 mL of 2.00 M KOH. When the two solutions are mixed in a constant-pressure calorimeter, a precipitate forms and the temperature of the mixture rises from 21.5 oC to 27.7 oC.Write net ionic equation for the reaction that occurs when the two solutions are mixed.

FREE Expert Solution

We are asked to write net ionic equation for the reaction that occurs when the two solutions are mixed.


CuSO4 (aq) + 2 KOH (aq) → Cu(OH)2 (s) + K2SO4 (aq)


Dissociate the aqueous species to ions: 

Cu2+(aq) + SO42-(aq) + 2 K+(aq)  + 2 OH-(aq) →Cu(OH)2 (s)  + 2 K+(aq)  + SO42-(aq)


Cancel spectators ions: 

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Problem Details

Consider two solutions, the first being 50.0 mL of 1.00 M CuSO4 and the second 50.0 mL of 2.00 M KOH. When the two solutions are mixed in a constant-pressure calorimeter, a precipitate forms and the temperature of the mixture rises from 21.5 oC to 27.7 oC.

Write net ionic equation for the reaction that occurs when the two solutions are mixed.

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