"Zn Cuso4 Znso4 Cu" Essays and Research Papers

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Zn Cuso4 Znso4 Cu

Experiment 9/5 Voltaic cells AIM How the change the concentration of the electrolyte CuSo4 (solution of ions) affect the voltage of the electrochemical cell BACKGROUND An electrochemical cell is also called a voltaic cell, which derives electrical energy from redox reaction taking place within the cell. It consists of two different metals that are connected by a salt bridge. Eletrons always flow from anode to cathode, where anode is negative (reduction) and cathode is positive (oxidation)...

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Chem Lab

buildings could very well be rusting and dissolving around us. Metal/ Cation or Solution HCl H2O CuSO4 ZnSO4 MgSO4 SnCl2 Fe(NO3)3 Cu NR NR NR NR NR NR NR Mg R NR R R NR R R Sn R NR R NR NR NR NR Zn R NR R NR NR R R Fe R NR R NR NR R NR Steel (FeAl) R NR R NR NR R NR Table 1 : Predictions Metal/Cation Or Solution HCL Mg2+ H2O Cu2+ Zn2+ Fe2+ Sn2+ Cu Rusted, Less shiny No reaction No reaction bubbles bubbles tarnished No reaction Mg Bubbles, Hydrogen...

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Electochemical

with 0.10M Cu+2 solution. E˚ for copper electrode is 0.34V. 2. Calculate EMF of the cell involving the reaction : Mg(s)+ 2Ag+(aq) → Mg+2(aq) + 2Ag(s) Given; [Mg+2] = 0.130M and [Ag+] = 1.0x10-4M & E˚Ag+/Ag = 0.80V and E˚Mg+2/Mg = -2.37V. 3. Calculate the EMF of the cell: ZnZn+2(1M)║ Ag+(1M)│Ag ; Given; E˚Zn/Zn+2 = 0.762V...

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Chlorine and Cu Zn

solution formed on litmus paper The solution is an alkali and so turns red litmus paper blue and red litmus paper turns red. f) Which metals on the table i) form coloured compounds? Fe, Cu Zn ii) have catalytic ability? Fe, Cu Zn iii) show multiple valencies? C iv) are hard? Fe, Cu Zn v) are highly reactive? Li, Na. K, F, Cl, Br 2. (a) Which of the two metals lithium or rubidium (i) is harder? Lithium (ii) has a higher density? Lithium (iii) has...

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Voltaic Cell Lab Report

negative terminal electrolyte, the higher the potential difference in voltaic cell. Variables: Manipulated variable | Concentration of negative terminal electrolyte * Use zinc sulphate solution, ZnSO4 as the negative terminal electrolyte throughout the experiment * Use zinc sulphate solution, ZnSO4 of different concentration, 1.0M, 0.10M, 0.010M and 0.0010M * Measure 40g, 4g, 0.4g and 0.04g of zinc sulphate powder then mix it in distilled water respectively until all the salt are completely...

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The Ionic Reactionalization

single-displacement reaction. Here are the chemical formulas of the reactants for each reaction: • zinc – Zn copper sulfateCuSO4 In well 1A there was a chemical reaction which turned the zinc black, while the copper sulfate was still blue. AX + B → A + BX Zn + CuSO4ZnSO4 +Cu • aluminum – Al copper sulfate – CuSO4 In well 2A there was no reaction between the aluminum and copper sulfate. The aluminum floated and there was no...

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Investigation of the effect of the mass of Zinc, on the temperature change of a Copper Sulphate solution

Copper Sulphate solution (CuSO4) in a measuring cylinder, for precise accuracy, and then pour the solution into test tube. I will place the test tube into a beaker and insulate the test tube, for minimum heat loss. (As shown in the diagram above.) 2.Secondly I will measure the required amount of Zinc (Zn) on a weighing scale, again for precise accuracy. I will then measure the starting temperature using a thermometer. Next I will pour the Zinc into the test tube containing CuSO4. 3.Finally I will measure...

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Lab Report

Started with copper, Cu (s). | reddish, brownish, orange-ish, powder-like | 2. Added nitric acid, HNO3 (aq). | acid turns blue and smells like chlorine. | 3. Added water, H2O (l). | stayed the same | 4. Added sodium hydroxide, NaOH (aq). | changed consistency, gel-like | 5. Heated the mixture | becomes darker, dark-brown-like, shavings | 6. Filtered the solid and added sulfuric acid, H2SO4 (aq), to it. | sulfuric acid cleans off the copper | 7. Added zinc, Zn (s). | bubbles, zinc...

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Copper Cycle

solid Cu (OH) 2 through a precipitation reaction (Rxn 2). Heating of the precipitate in water decomposes the Cu (OH) 2 into CuO, a black solid (Rxn 3). Sulphuric acid is then added to dissolve the copper oxide, forming a light blue solution of Cu (II) ions (Rxn 4). Finally, zinc metal participates in a redox reaction with both the copper ions and the excess sulphuric acid to form solid copper metal and evolve hydrogen gas. Scheme 1: The series of copper transformation reactions. | Cu (s) +...

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Copper Cycle

to an aqueous. The second reaction converted the aqueous Cu2+ into the solid copper (2) hydroxide. In the third reaction Cu(OH)2 decomposed into copper 2 oxide and water when heated. When solid CuO reacted with sulfuric acid, the copper returned to solution as an ion (Cu2+). The cycle of reactions was completed with the reaction where elemental copper was regenerated by Zn and Cu exchanging states in acidic solution. Data: Reaction 1: Mass of Copper=0.503g The solution turned green, as well as...

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