What color will the final product of the copper nitrate reaction be?

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The discussion centers on a chemical reaction involving cupric nitrate and sodium hydroxide, resulting in the formation of copper hydroxide and sodium nitrate. Participants highlight that the blue color of both the reactant and product makes it challenging to determine when the reaction is complete. A key method to confirm the reaction's completion is to filter the mixture and check if the filtrate is clear, indicating that all cupric nitrate has reacted. Sodium nitrate is confirmed to be highly soluble in water. Additionally, after filtering out the insoluble copper hydroxide, adding ammonium hydroxide to the precipitate can produce a vibrant color change, enhancing the visual aspect of the experiment.
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Cu(NO3)2(aq) + 2 NaOH(aq) → Cu(OH)2(s) + 2 NaNO3(aq)

This is a chemical reaction I'll be doing soon for my chemistry lab.
And I was wondering, since the product is blue, and as is the reactant, how can I tell I've used up all the cupric nitrate and it has all reacted?

Note: and the NaNO3 is aqueous correct ?
 
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The copper hydroxide is insoluble and will precipitate from the solution.

After you filter it off, check that the filtrate is completely clear. If not, then there is still copper in solution, so the reaction isn't complete.

Yes, sodium nitrate is highly soluble in water.
 
If you remove the Cu hydroxide by filtration or decanting the reaction mix and washing, try adding a little ammonium hydroxide (household "Ammonia") to the precipitate. The result should be very colorful.
 
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