How to answer exam questions on electrochemistry and pick up all the marks

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  • เผยแพร่เมื่อ 4 ต.ค. 2024

ความคิดเห็น • 2

  • @summer_393
    @summer_393 3 หลายเดือนก่อน +1

    how did you know iodine is the reactant

    • @CrunchChemistry
      @CrunchChemistry  3 หลายเดือนก่อน +1

      in part (v)? one of the reactants in this redox system is iodide ions from the saturated solution the student was thinking of using to soak the strip oof filter paper in when making the salt bridge - be careful that we are talking about iodIDE ions as the reactant as iodINE is the product of the oxidation. In using NaI for the salt bridge we would have three redox reactions going on - oxidation of V2+, oxidation of I- and reduction of VO2+!