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Making of Copper Hydroxide Precipitate - Acids, Bases & Salts Video Lecture - Class 10

FAQs on Making of Copper Hydroxide Precipitate - Acids, Bases & Salts Video Lecture - Class 10

1. What is the chemical equation for the formation of copper hydroxide precipitate?
Ans. The chemical equation for the formation of copper hydroxide precipitate is: CuSO4 + 2NaOH → Cu(OH)2 + Na2SO4.
2. How is copper hydroxide precipitate formed in the laboratory?
Ans. Copper hydroxide precipitate can be formed in the laboratory by adding sodium hydroxide (NaOH) solution to a solution of copper sulfate (CuSO4). This reaction results in the formation of a blue precipitate of copper hydroxide (Cu(OH)2).
3. What is the significance of copper hydroxide precipitate in chemistry?
Ans. Copper hydroxide precipitate is significant in chemistry as it is used in various applications such as fungicides, insecticides, and as a pigment in paints. It also serves as a precursor for the synthesis of other copper compounds.
4. How can the purity of copper hydroxide precipitate be determined?
Ans. The purity of copper hydroxide precipitate can be determined by performing a gravimetric analysis. This involves measuring the mass of the precipitate and comparing it to the expected mass based on stoichiometry. Other techniques such as spectroscopy can also be used to determine the purity.
5. Can copper hydroxide precipitate be converted back to copper sulfate?
Ans. Yes, copper hydroxide precipitate can be converted back to copper sulfate by reacting it with sulfuric acid (H2SO4). This reaction results in the formation of copper sulfate (CuSO4) and water (H2O). The reaction can be represented by the equation: Cu(OH)2 + H2SO4 → CuSO4 + 2H2O.
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