Stoichiometry Ii- Synthesis of a Coordination Substance Essay

Stoichiometry II- Synthesis of the Coordination Mixture

Report

〖CuSO〗_4 (s)→〖Cu〗^(2+) (aq)+ SO_4 (aq)^(2-)

Cu^(2+) (aq)+ 4NH_3 (aq)→[Cu(NH_3 )_4 ]^(2+)

[Cu(NH_3 )_4 ]^(2+)+ SO_4 (aq)^(2-)+H_2 O□(→┴(methanol solvent) ) [Cu(NH_3 )_4 ]SO_4*H_2 O

1 . 992 g 〖CuSO〗_4 (s) × (1 mol〖 CuSO〗_4 )/(159. 6th g) =. 0124 mol 〖CuSO〗_4 (s). 0124 mol 〖CuSO〗_4 (s)×(1 mol [Cu(NH_3 )_4 ]SO_4*H_2 O )/(1 mol〖 CuSO〗_4 )×(245. seventy four g [Cu(NH_3 )_4 ]SO_4*H_2 O )/(1 mol [Cu(NH_3 )_4 ]SO_4*H_2 O )=3. 047 g [Cu(NH_3 )_4 ]SO_4*H_2 To

% Yield Computation: %yield=(actual deliver (g))/(theoretical deliver (g)) Back button 100= (2. 64 g)/3. 047×100= eighty six. 64%

ReagentMass (g)Moles (mol)Theoretical moles of Product (mol)Theoretical mass of Product (g)Actual Mass of Product (g)% yield

〖CuSO〗_4 (s)1. 992 g. 0124 mol. 0124 mol3. 047 g2. 640 g86. 64%

Solubility of Precipitate ion

[Cu(NH_3 )_4 ]SO_4*H_2 O+SolventObservation of Solubility

[Cu(NH_3 )_4 ]SO_4*H_2 To + AcetoneWhen the medicine ion was added to ~1 mL of acetone there were a strong home of insolubility. Even when a stir pole was used to mix the precipitate in the acetone, the medications remained un-dissolved in the solvent. [Cu(NH_3 )_4 ]SO_4*H_2 Um + DI WaterWhen the precipitate ion was added to ~1 mL of DALAM water, the precipitate was partially soluble. The precipitate caused the liquid to become deep blue color plus the precipitate blended into the drinking water with very little remaining in the bottom with the test conduit. [Cu(NH_3 )_4 ]SO_4*H_2 O + MethanolWhen the precipitate ion was added to ~1 mL of Methanol the precipitate was only a bit soluble. Although the solvent altered slightly in color, the large majority of medications ion continued to be un-dissolved inside the solvent. [Cu(NH_3 )_4 ]SO_4*H_2 O & DI + HClWhen ~1ml of 1. 0 M HCl was added to the medicine ion and DI answer, a light green precipitate produced. The light blue precipitate appeared flakey, nearly crystalline in nature in the beginning, but following about...

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