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Reagent Step in ProcedureObservations Data collected Mass: 3.0437 Pinacol Measured on balance Sulfuric acid added Heat Distillation (start) Distillation (finish) Volume: 5.0 750 EPM 150°C 750 RPM 250°C Pinacolone Purification Mass:\.4644 IR NMR 2,4-DNP Test Solid yellow color

Reagent Step in ProcedureObservations Data collected Mass: 3.0437 Pinacol Measured on balance Sulfuric acid added Heat Distillation (start) Distillation (finish) Volume: 5.0 750 EPM 150°C 750 RPM 250°C Pinacolone Purification Mass:\.4644 IR NMR 2,4-DNP Test Solid yellow color

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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  • Theoretical yield of pinacolone in grams and moles
    • show your calculations
  • Final yield of pinacolone (grams and % yield)
    • show your calculations
Reagent Step in Procedure Observations Data collected Mass: 3.0437 Pinacol Measured on balance Sulfuric acid added| Heat Volume: 5.0 750 EpM Distillation (start)| iš0°c 150°C Pinacolone Distillation (finish)| 250°c 750 RPM Purification Mass:\.4644 IR NMR 2,4-DNP Test Solid yellow color
Transcribed Image Text:Reagent Step in Procedure Observations Data collected Mass: 3.0437 Pinacol Measured on balance Sulfuric acid added| Heat Volume: 5.0 750 EpM Distillation (start)| iš0°c 150°C Pinacolone Distillation (finish)| 250°c 750 RPM Purification Mass:\.4644 IR NMR 2,4-DNP Test Solid yellow color
Part 1: Formation of pinacolone Add 3.0 g of pinacol and 30 mL of deionized water to a 100 mL round-bottom flask. Add a stir bar and clamp the flask to a ring stand, with the flask hovering 2-3 in above the hot plate. Turn on the stirring function on the plate until the mixture is evenly moving. Then slowly, carefully, add 5.0 mL of concentrated sulfuric acid. This is an exothermic reaction. Allow the mixture to stir for 10 minutes.
Transcribed Image Text:Part 1: Formation of pinacolone Add 3.0 g of pinacol and 30 mL of deionized water to a 100 mL round-bottom flask. Add a stir bar and clamp the flask to a ring stand, with the flask hovering 2-3 in above the hot plate. Turn on the stirring function on the plate until the mixture is evenly moving. Then slowly, carefully, add 5.0 mL of concentrated sulfuric acid. This is an exothermic reaction. Allow the mixture to stir for 10 minutes.
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