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SCH4C Lab #19 - Electrolysis: Introduction: When an electrical current passes through a solution of an electrolyte, chemical reactions may take place at the electrodes.These electrolytic reactions may involve the decomposition of the electrolyte. The electrolysis of copper(II) sulfate solution. 8.6 Copper Plating & Electrolysis Objectives: 1. When a salt is dissolved in water, its ions become free to move so the solution can be "electrolyzed." In this lab, you will be using a copper sulfate and vinegar solution to.
The ionic compound must be molten or dissolved in water to allow the ions to be mobile, since it is the movement of ions that is needed for electrolysis …
immerse the two electrodes 3cm into the copper sulphate solution (note that the depth of the electrodes affect the rate of electrolysis) Before starting the experiment makes sure the circuit is working fine and use the variable resistor to adjust the current to 2.0A. The reaction would then be called electrolysis.Depending on the kind of electrodes used, electrolysis of a substance can produce different results. Class practical. MYP Year11 Chemistry ‘Electrolysis Lab’ Annabel Suen 11.5!
Would this still work if I were to swap the copper sulfate for magnesium sulfate, and use magnesium ribbon for a cathode? . This class experiment can be done by students working either in pairs or threes. Leave the circuit running for 20-30 minutes, or until you are happy with the amount of copper on the key. Using a table, highlight the similarities and differences between using graphite electrodes and copper electrode for the electrolysis of copper sulphate. 4. The electrical energy causes a chemical change. Show Video.
To understand how the laws of attraction govern the formation of ions and molecules 2. In the above process, after taking electrons the neutral copper atoms get deposited on the cathode. My hypothesis was that as the concentration is increased, so will the rate of electrolysis.
This investigation will examine one of the factors that affect the amount off copper deposited during the electrolysis of copper (II) sulphate solution. Lesson organisation.
Electrolysis in the Lab. This particular experiment involves the electrolysis of copper (II) sulphate using a pair of copper electrodes. First, the electric current passed through the electrolytic cell will cause the copper sulphate solution to dissociate into it’s two component ions, Cu2+ and SO42-. This experiment enables students to carry out the electrolysis of copper(II) sulfate solution and to link their findings with the industrial electrolytic refining of copper..
9 electroplating lab report. Active 3 years, 1 month ago. Check out the following link to find out how electrolysis can be used for electroplating. This investigation will examine one of the factors that affect the amount off copper deposited during the electrolysis of copper (II) sulphate solution. Question: 1. In the above process, after taking electrons the neutral copper atoms get deposited on the cathode.
Introduction: There are many different factors that can affect the mass of copper deposit on the graphite electrode after electrolysis reaction of copper sulphate such as the increase in voltage, the concentration of ions in electrolyte, surface area of bubbles of oxygen are given off at the anode As the copper ions are discharged as copper atoms at the cathode, the blue colour of the solution gradually fades and an oxidation reaction occurs which is the 4e- (electron loss).
The electricity splits ionic chemical compounds into separate components, for example, copper chloride can be split into Cu metal and Cl gas. I am a high school student and for my chemistry lab, I did an electrolyis experiment on how the changing concentration of electrolyte (copper sulfate) will change the rate at which the copper is deposited on the cathode. Filed Under: Essays. Lesson organisation. Viewed 7k times 2.
Factors affecting mass of copper transferred in Electrolysis of aqueous copper sulphate 1.23 1.24 -0.06 10 300 1.23 1.20 1.20 1.21 -0.09 (Not needed for my analysis and evaluation but was raw data) See attached sheets for graphs. During the electrolysis of […] 1 $\begingroup$ I am planning to try copper plating a piece of metal by performing electrolysis on an aqueous solution of copper sulfate. You will be responsible for operating the R2 or R3 Electro Plating Line. Investigating the electrolysis of aqueous solutions and electroplating. Class practical. Electrolysis is the decomposition of an ionic solution by electricity. EXPERIMENT 1: ELECTROLYSIS OF COPPER (II) SULPHATE. Electrolysis of the new solution.