Ordinarily, the permanganate titration end point is not permanent; the permangan

Question

Ordinarily, the permanganate titration end point is not permanent; the permanganate color will after a period of time. This is due to .... the evaporation of permanganate from the warm titration mixture. the dilution of permanganate with water over time. the decomposition of permanganate with light over time. the reaction of permanganate with water over time. the reduction of permanganate with reducing species dissolved in water. Use the standard half-ccll potentials listed below to calculate the standard cell potential (E degree cell) the following reaction occurring in an electrochcmical cell at 25 degree C. (The equation is balanced.) +2.04 V -2.04 V +2.72 V -1.36 V +1.36 V Determine the redox reaction represented by the following cell notation: Mg(s) | Mg2+(aq) || Cu2+(aq) | Cu(s)

Explanation / Answer

40) C

41) C

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