Distillation Post Lab - Distillation Post Lab Christina...

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Distillation Post Lab Christina Wolverton 10 September 2016 TA: Alex Reese Results: Unknown: 0 2 4 6 8 10 12 14 16 18 0 20 40 60 80 100 120 Simple Distillation Volume (mL) Temperature (ºC) 0 2 4 6 8 10 12 14 16 18 0 10 20 30 40 50 60 70 80 90 100 Fractional Distillation Volume (mL) Temperature (ºC) The boiling points shown by the simple distillation were determined to be approximately 75ºC and 100ºC. These two values correspond with the boiling points
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of ethanol and water, respectively. The boiling points shown by fractional distillation were determined to be approximately 67ºC and 100ºC. These two values most closely correspond with the boiling points of methanol and water, respectively. The percent error for the water boiling point in the simple distillation is 0.7% ((| 99.3-100|/100)*100). The percent error for the boiling point of ethanol in simple distillation was 3.9% ((|75-78|/78)*100). The percent error for the water boiling point in the fractional distillation was 10.9% ((|89.1-100|)/100)*100), and the percent error for the methanol in the fractional distillation was 3.1% ((|67- 65|/65)*100).
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