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When an ion-selective electrode for X+was immersed in 0.0493MXCl, the measured potential was 0.0270V. What is the concentration of X+when the potential is 0.0420V ?

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When an ion-selective electrode for X+was immersed in 0.0493MXCl, the measured potential was 0.0270V. What is the concentration of X+when the potential is 0.0420V ? Assume that the electrode follows the Nernst equation, the temperature is at 25C, and that the activity coefficient of X+is 1 . [X+]=

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