Group 7 Tues Jeswhil
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Transcript of Group 7 Tues Jeswhil
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8/14/2019 Group 7 Tues Jeswhil
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Performed by:
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To be able to determine the electromotive force(emf) of the different galvanic cells under study.
To be able to perform an experiment that useselectrochemistry as application.
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Stirring Rod50 ml beakers (7 pcs)Digital MultimeterFilter paperFilter paper
Strips (5pcs)
Zinc SulfateLead nitrateIron (II)
Ammonium Sulfate
Iron (iii)Ammonium sulfateCopper (II) SulfateAluminum nitrateZinc electrodeLead electrodeIRON ELECTRODECOPPER ELECTRODEAluminum electrodePotassium chloride
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-create galvanic cells of different composition
-Measure the voltage produced by these
galvanic cells
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Soln 1 Soln 2
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1. Calculate required mass of the substances
to form 0.1 M of solution with given the
volume
0.1
molL
x1 L
1000 ml
25 mlx x
161.45 g
1 mol
= 0.4036 gZnSO4
Sample calculation using ZnSO4
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ZnSO4
Pb(NO)4
Fe(NH4)2(SO4)2
FeNH4(SO4)2
CuSO4
Al(NO3)3
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1. Make a saturated potassium chloride solution
50 ml beaker
20 ml water
Kcl
Stir in untilPrecipitate
forms
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1. Create the galvanic cell
Soln 1 Soln 2
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1. Place submerge electrodes in the solutions
Soln 1 Soln 2
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1. Place submerge electrodes in the solutions
Soln 1 Soln 2
Check voltage
Record where node is placed
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THANK YOU for listening!
END!