Вопрос
HOMETASK 1) An electrode potential was measured to be -0.500V VS. Cu/CuSO4 What is this electrode potential on the SCE scale?
Решения
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Цветана
профессионал · Репетитор 6 летЭкспертная проверка
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To convert the electrode potential from the standard hydrogen electrode (SHE) scale to the saturated calomel electrode (SCE) scale, we need to use the following relationship:<br /><br />\[ E_{SCE} = E_{SHE} + 0.244 \]<br /><br />Given that the electrode potential is \(-0.500 \, \text{V}\) vs. \(Cu/CuSO_4\), we first need to find the electrode potential on the SHE scale. The standard hydrogen electrode has a potential of 0.000 V by definition.<br /><br />Since the potential of the copper electrode is given as \(-0.500 \, \text{V}\) vs. \(Cu/CuSO_4\), we can assume that the potential of the hydrogen electrode is 0.000 V:<br /><br />\[ E_{SHE} = 0.000 \, \text{V} \]<br /><br />Now, we can convert this to the SCE scale using the relationship:<br /><br />\[ E_{SCE} = 0.000 \, \text{V} + 0.244 \]<br /><br />\[ E_{SCE} = 0.244 \, \text{V} \]<br /><br />Therefore, the electrode potential on the SCE scale is \(0.244 \, \text{V}\).
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