To determine the amount of copper in a sample of copper ore using coulometric titration with a silver anode, we need to follow these steps:1. Prepare the sample: First, we need to prepare the sample by dissolving the copper ore in an appropriate solvent, usually a strong acid like nitric acid HNO3 or sulfuric acid H2SO4 .2. Set up the coulometric titration: In this method, we will use a silver anode as the titrant. The silver anode will be oxidized to silver ions Ag+ while the copper ions Cu2+ in the sample will be reduced to copper metal Cu . The reaction can be represented as follows:Ag Ag+ + e-Cu2+ + 2e- Cu3. Perform the titration: Connect the silver anode to the positive terminal of a power supply and a platinum cathode to the negative terminal. Immerse both electrodes in the sample solution and apply a constant current. The silver anode will dissolve, releasing silver ions into the solution, which will then react with the copper ions in the sample.4. Monitor the titration: Measure the amount of charge in coulombs passed through the cell during the titration. This can be done by integrating the current over time or by using a coulometer.5. Calculate the amount of copper: Use Faraday's law of electrolysis to determine the amount of copper in the sample. Faraday's law states that the amount of substance produced or consumed at an electrode during electrolysis is directly proportional to the amount of charge passed through the cell. The formula for Faraday's law is:n = Q / z * F where n is the amount of substance in moles , Q is the charge in coulombs , z is the number of electrons transferred in the redox reaction in this case, z = 2 for copper , and F is the Faraday constant approximately 96485 C/mol .6. Convert moles to mass: Multiply the number of moles of copper by the molar mass of copper approximately 63.55 g/mol to obtain the mass of copper in the sample.7. Determine the percentage of copper in the ore: Divide the mass of copper by the total mass of the ore sample and multiply by 100 to obtain the percentage of copper in the ore.By following these steps, you can determine the amount of copper in a sample of copper ore using coulometric titration with a silver anode.