how do you form copper nitrate crystals from copper carbonate and nitric acid?

Question

please..

Answer 1

Copper Carbonate will react with acid to produce Carbon Dioxide and a salt. Since the acid we are talking about is Nitric acid, it will produce a Nitrate salt, namely Copper Nitrate.

The reaction which proceeds is not all that dissimilar to the reaction of Baking soda and vinegar in some respects.

The reaction is as follows,
CuCO3 + 2 HNO3 --> Cu(NO3)2 + H2O + CO2

The Carbon Dioxide will bubble away and the Copper Nitrate and water will be left behind in solution.

If you want to get Copper Nitrate Crystals (as opposed to a solution of Cu(NO3)2, you will need to boil off the water or change the solubility of the Copper Nitrate in order to get the substance to precipitate out.


*Note: Nitric acid is a rather dangerous acid which can be extremely corrosive and can sometimes release NOx gasses when reacting (the reaction might not proceed as ideally as it is shown above). It would probably not be the best idea for an inexperienced person to perform this procedure.

Answer 2

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(1)you keep adding copper carbonate until the solution is saturated, meaning no more solid will dissolve (When the solution is saturated then the reaction is complete) (2) the first filtration is done to remove the excess copper carbonate, (the unreacted one) you would not obtain the full amount of crystals if the first step is not complete- meaning the reaction was not completed