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The reaction rate for the reaction [P...

The reaction rate for the reaction
`[PtCl_4]^(2-) + H_2O = [Pt(H_2O)Cl_3]^(-) + Cl^-`
was measured as a function of conccntrations of different species. It was observed that
`(-d[[PtCl_4]^(2-)])/dt = 4.8 xx 10^(-5) [[PtCl_4]^(2-)] -2.4 xx 10^(-3) [[Pt(H_2O)Cl_3]^-][Cl^-]`
where square brackets arc used to denote molar concentrations. The equilibrium constant `K_c` = ___________. (Nearest integer)

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The rate of reversible reaction (change in concentration per second): PrCl_(4)^(2-)+H_(2)OhArrPt(H_(2)O)Cl_(3)^(-)+Cl^(-) , was observed at 0.3 ionic strength at 25^(@)C and noticed that (Delta[PtCl_(4)^(2-)])/(Delta t)=3.9xx10^(-5)[PtCl_(4)^(2-)]-2.1xx10^(-3)[Pt(H_(2)O)Cl_(3)^(-)][Cl^(-)] Calculate: ( a ) Rate constant for forward and backward reaction. ( b ) The equilibrium constant for the complexation of fourth Cl^(-) at 0.3 ionic strength.

The approach to the following equilibrium was observed kinetically from both directions Pt Cl_(4)^(2-) +H_(2)O hArr Pt (H_(2)O) Cl_(3)^(-) +Cl^(-) "at " 25^(@)C . It was found that - (d[PtCl_(4)^(2-)])/(dt) = (3.9 xx10^(-5)) [Pt Cl_(4)^(2-)] - (2.1 xx10^(-3)) [ Pt (H_(2)O) Cl_(3)^(-) ] [Cl^(-)] Calculate the equilibrium constant for the complexation of the fourth Cl^(-) by Pt(II) .

Knowledge Check

  • The oxidation number of Pt in [Pt(H_(2)O)Cl_(3)]^(-) is

    A
    `+1`
    B
    `+2`
    C
    `+3`
    D
    `+4`
  • In the reaction HCl + H_(2)O hArr H_(3)O^(+) + Cl^(-)

    A
    `H_(2)O` is the conjugate base of HCl acid
    B
    `Cl^(-)` is the conjugate base of HCl acid
    C
    `Cl^(-)` is the conjugate acid of `H_(2)O` acid
    D
    `H_(3)O^(+)` is the conjugate base of HCl
  • The oxidation number of Pt in [Pt(C_2H_4)Cl_3]^- is

    A
    `+1`
    B
    `+2`
    C
    `+3`
    D
    `+4`
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