Single Replacement reaction
The final reaction when replacing the Copper with Zinc is a single replacement reaction.
Zn(s)+CuSO4(aq) -->ZnSO4(aq)+Cu(s)
The Zinc we add to the aqueous cupric sulfate dissolves into the Copper Sulfate solution, and replaces the Copper, forcing the Copper out of the liquid and forms a solid at the bottom of the beaker. And so, the Zinc then replaces the Copper in the Sulfate solution, causing ZnSO4 and solid Copper.
Zn(s)+CuSO4(aq) -->ZnSO4(aq)+Cu(s)
The Zinc we add to the aqueous cupric sulfate dissolves into the Copper Sulfate solution, and replaces the Copper, forcing the Copper out of the liquid and forms a solid at the bottom of the beaker. And so, the Zinc then replaces the Copper in the Sulfate solution, causing ZnSO4 and solid Copper.
Double replacement reaction which forms a precipitate
Two of the reactions in this lab were double replacement precipitation reactions.
One was:
Cu(NO3)2(aq)+2NaOH(aq) -->Cu(OH)2(s)+2NaNO3(aq)
This reaction is caused because of the replacement of Na with Cu. When the copper connects with hydroxide it forms Cupric Hydroxide(bright green alien guts) which is not soluble. The Cupric Hydroxide is the solid precipitate.
The second was:
3CuCl2(aq)+2NaPO4(aq) -->Cu3(PO4)2(s)+6NaCl(aq)
This reaction is caused because of the replacement of Na with Cu. When the copper connects to the phosphate and replaces the sodium, it forms cupric phosphate(blue gel) which is not soluble. So, the Cupric Phosphate is the solid precipitate.
One was:
Cu(NO3)2(aq)+2NaOH(aq) -->Cu(OH)2(s)+2NaNO3(aq)
This reaction is caused because of the replacement of Na with Cu. When the copper connects with hydroxide it forms Cupric Hydroxide(bright green alien guts) which is not soluble. The Cupric Hydroxide is the solid precipitate.
The second was:
3CuCl2(aq)+2NaPO4(aq) -->Cu3(PO4)2(s)+6NaCl(aq)
This reaction is caused because of the replacement of Na with Cu. When the copper connects to the phosphate and replaces the sodium, it forms cupric phosphate(blue gel) which is not soluble. So, the Cupric Phosphate is the solid precipitate.
Our group striving for accuracy
Brittani M: While Phoenix and Cate work on reactions and stoichiometry, Brittani is busy putting together our blog and taking a lot of pictures, showing the progression of our lab, and putting captions and titles on them as we go.
Phoenix C: Phoenix is always busy with producing the proper reastions and getting correct calculations by getting to eye-level and checking the bottom of the miniscus. Even when we have to repeat filtering.
Cate R: Cate is there to assist Phoenix with gathering some materials, but mainly she works on double-checking our equations and stoichiometry. (And spending time on late nights editing the blog)
Phoenix C: Phoenix is always busy with producing the proper reastions and getting correct calculations by getting to eye-level and checking the bottom of the miniscus. Even when we have to repeat filtering.
Cate R: Cate is there to assist Phoenix with gathering some materials, but mainly she works on double-checking our equations and stoichiometry. (And spending time on late nights editing the blog)
