Some Aqueous Solution Chemistry Of Copper(Ii)Ion

Title: SOME AQUEOUS SOLUTION CHEMISTRY OF COPPER(II)ION Aims: 1. To drop dead on the synthesis of Copper(II) Sulfate Pentahydrate and determine the theoretical egress as well as the part end product of CuSO4.5 water 2. To play along a series of reactions with grunter (II) ions using different reagents. Results & adenine; Questions: A. synthetic thinking of Copper(II) Sulfate Pentahydrate. 1. compares for each reaction in the preparation. (a) chemical reaction of copper (II) oxide with nitric back breaker. CuO (s) + 2HNO3 (aq) ? Cu(NO3)2 (aq) + H2O (l) (b) neutralisation reaction of the excess nitric unpleasant with atomic number 11 carbonate. Na2CO3 (s) + 2HNO3 (aq) ? 2NaNO3 (aq) + carbonic acid gas (g) + H2O (l) (c) Reaction of aqueous copper(II) process with sodium carbonate. Cu(NO3)2 (aq) + Na2CO3 (aq) ? CuCO3 (aq) + 2NaNO3 (d) Reaction of copper (II) carbonate with sulphuric acid. CuCO3 (aq) + H2SO4 (aq) ? CuSO4 (aq) + CO2 (g) + H2O (l) 2. Yield of intersection point (a) Mass of CuO used: _4.00 g (b) Mass of CuSO4.5H2O form:12.00 g (c) Calculation of theoretical yield: No. of moles of CuO = 4g63.55+16=0.0503 moles Hence, zero(prenominal) of moles of CuSO4.5H2O = 0.0503 moles Mr. of CuSO4.5H2O =63.55+32.07+416+ 518 = 249.62g/mol Mass of CuSO4.5H2O formed = 0.0503 ×249.62=12.56g metaphysical yield = 12.

56g (d) Calculation of per centum yield Percent yield =12.0012.56 × carbon=95.54% (e) Some CuSO4 solution was take to use for the reaction in Part B. This has reduced the pe rcent yield by a very small piece only. Thi! s is because only around 1,2 ml have been used to hightail it out the analysis. B. Reactions of Copper (II) Ions Reaction with:| Observations| Formula of copper-containing product| Equation for reaction| Oxidation deposit of copper in the product| (a) Sodium Sulphide (Na2S)| dreary solid deposit, rotten smack| CuS| CuSO4 (aq) + Na2S (aq) ? Na2SO4 (aq) + CuS (s)| +2| (b) Sodium hydrated oxide (NaOH)| Blue crystals| Cu(OH)2| CuSO4 (aq) + 2NaOH (aq) ? Na2SO4...If you want to lounge about a entire essay, order it on our website: OrderCustomPaper.com

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