Key to voltammetry exercise

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    20-Jan-2017
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  • Key to voltammetry exerciseCompany name

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  • 21 1 *

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  • 21 1 2 6

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  • 21 1 ()

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  • 21 1

  • 21 1

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  • 21 1 (E0) (E1/2) ()

    kA kP Eref

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  • 21 2

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  • 21 5 21 11 n

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  • 21 6 Q + 2H+ + 2e_ H2Q E = 0.599 V SCE pH 7.0 . pH 5.0

  • 21 7

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  • 21-8 20.0 mL 3.65x10-3 M Cd2+ 31.3 A.5 .10 .15 *

  • 21 9 ()*

    Volumes Used, mLSolutionSample0.400 M KCl2.0010-3 M Cd2+H2OCurrent, A(a)15.015.020.020.00.005.0015.010.079.795.9(b)10.010.020.020.00.0010.020.010.049.982.3(c)20.020.020.020.00.005.0010.05.0041.457.6(d)15.015.020.020.00.0010.015.05.0067.9100.3

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  • 21 10 1.010-4 M KBr 0.1 M KNO3 +0.12 V +0.48 V 0.12 V *

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  • 21 11 -0.349 V pH 2.5 Ox + 4H+ + 4e_ R pH 1.0, 3.5 7.0

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    IR

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