1. In the potentiometric titration of an aqueous potassium chloride solution with 0.09603 M silver nitrate,...
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1. In the potentiometric titration of an aqueous potassium chloride solution with 0.09603 M silver nitrate, the following data were obtained: Volume of AgNO, (mL) E versus SCE (V) 10.00 20.00 25.00 27.00 28.00 28.80 29.00 29.10 29.20 29.30 29.40 29.50 29.60 29.70 30.00 30.50 31.00 33.00 +0.062 0.085 0.107 0.123 0.138 0.161 0.173 0.180 0.192 0.221 0.228 0.304 0.314 0.321 0.336 0.348 0.359 0.389 A silver wire indicator electrode and a saturated calomel reference electrode (SCE) were employed. Plot E versus V (i.e., the measured potential in volts as a function of the volume of added titrant in ml), as well as the first derivative AE/AV versus V (using the average volume for V). Using the first derivative method, locate the equivalence point, and calculate the millimoles of chloride ion in the sample. 1. In the potentiometric titration of an aqueous potassium chloride solution with 0.09603 M silver nitrate, the following data were obtained: Volume of AgNO, (mL) E versus SCE (V) 10.00 20.00 25.00 27.00 28.00 28.80 29.00 29.10 29.20 29.30 29.40 29.50 29.60 29.70 30.00 30.50 31.00 33.00 +0.062 0.085 0.107 0.123 0.138 0.161 0.173 0.180 0.192 0.221 0.228 0.304 0.314 0.321 0.336 0.348 0.359 0.389 A silver wire indicator electrode and a saturated calomel reference electrode (SCE) were employed. Plot E versus V (i.e., the measured potential in volts as a function of the volume of added titrant in ml), as well as the first derivative AE/AV versus V (using the average volume for V). Using the first derivative method, locate the equivalence point, and calculate the millimoles of chloride ion in the sample.
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Prepare the following plot as below Volume AV mL of E vs AgNO3 V Vdown SCE V mL Vup 1000 2000 2500 2... View the full answer
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