Year 11 Chemistry Electrochemical Cells Purpose To intend down the order of reactivity for the alloys copper, iron, lead and surface practice the to the lowest degree amount of electrochemical stalls as possible. Materials List Four one hundredml beakers 4 strips of dribble paper jolting 15cm in length Voltmeter Sodium Chloride tooth root at 10% concentration atomic number 30, squealer, exceed and weightlift metal strips (approximately 10 cm) 50 ml of Copper sulfate, Zinc sulphate, Lead process and Iron treat themes Scissors Procedure - bum the 50ml reply of zinc sulphate in a 100ml beaker, and 50ml solution of copper sulphate in a different 100ml beaker. prescribe the zinc metal strip in the zinc sulphate beaker and the copper metal strip with the copper sulphate beaker. - interpenetrate one of the slabber paper strips in the sodium chloride solution, make authentic 100% of the surface has been covered. Place one stop over of the filter paper in the zinc sulphate solution and the other(a) end in the copper sulphate solution (making sure the filter paper is not touchinging the metals) - utilise the voltmeter, touch both metals with the connecting wires so there is positive reading. criminal immortalise the voltage, anodic metal and cathodic metal. - Repeat this process using an Iron metal strip in 50ml of Iron nitrate solution and a lead metal strip in 50ml of lead nitrate solution. - Combine the most reactive (anodic) metals from the foremost two cells, to create the next cell. This combination will circumscribe the overall 1st and 2nd most reactive.
The next cell set up will be the two least reactive (cathodic) metals from the first two cells, this will determine the ordinal most reactive and the least reactive overall. Results | |Voltage |Anode |Cathode | half(a) Equations | |Copper-Zinc |1.08V |Zinc |Copper |Zn ? Zn2+ + 2e- Cu2+ + 2e- ?Cu...If you want to get a across-the-board essay, order it on our website:
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