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At 298 K, nitrous acid (HNO2) dissociates in water with a Ka of 0.00071.

a)Calculate G° for the dissociation of HNO2. (Use Ka to calculate the answer.)

b) Calculate G if [H3O+] = 0.00070 M, [NO2 - ] = 0.16 M, and [HNO2 ] = 0.21 M.

  • Chemistry -

    DGo = -RTlnK, then
    DG = DGo+RTlnK where you substitute concns for those materials making up Ka.

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