We used the nernst equation to find the theoretical

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We used the Nernst equation to find the theoretical values which we graphed against our tested measurements using the multimeter. The Nernst equation is E cell = E o cell – log(Q) , and Q is concentration of the products divided by the concentration of the reactants, which means Ecell = E 0 cell – (0.0592/n)(log(Zn 2+ /Cu 2+ )). (#s from above table) Nernst Equation Measured 0.0888 = 0–(0.0592/2)(log(0.001/1)) 1.0704= 1.1–(0.0592/2)(log(0.1/0.01)) 1.0408= 1.1–(0.0592/2)(log(0.1/0.001)) 1.0112 = 1.1–(0.0592/2)(log(0.1/0.0001)) 1.1 = 1.1–(0.0592/2)(log(0.1/0.1)) ? = 0.92–(0.0592/2)(log(0.1/X)) 1 0.0888 0.041 V 2 1.0704 0.673 V 3 1.0408 0.605 V 4
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4 1.0112 0.578 V 5 1.1 0.650 V 6 ? 0.580 V Based on this graph, we can see that the 0.580 V (measurement for the unknown molar concentration of copper sulfate) falls very close to the measurement for 0.0001 M copper sulfate, therefore we can assume that the Molar concentration of the unknown solution is 0.0001 M CuSO4. References Libretexts. “Table.” Chemistry LibreTexts , Libretexts, 15 June 2017. 5
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