You are a bar customer and you suspect that the barman is diluting the whiskey. You take a sample for analysis and determine the % ethanol content in the sample by an internal standardisation protocol using gas chromatography (GC). The following procedure was used. Standards were prepared by adding 0.5, 1.0, 2.0, 4.0, and 6.0 mL aliquots of ethanol to 100 mL volumetric flasks each of which contained 5.0 mL of propanol (Internal Standard). The solutions were made up to the mark with water. The Whiskey sample was prepared by adding 20.0 mL of Whiskey to 5.0 mL of propanol in a 100 mL volumetric flask and making up to the mark with water. The GC analysis of the standards and the sample was undertaken and the results are presented in the Table: What is the % whiskey in the sample OA. 15.4 OB. 17.2 OC. 19.6 D. 24.1 Reset Selection whiskey AEtOH Аргон 3702 32560 8706 38490 18892 41870 32750 36340 35775 35880 48339 31574 A
You are a bar customer and you suspect that the barman is diluting the whiskey. You take a sample for analysis and determine the % ethanol content in the sample by an internal standardisation protocol using gas chromatography (GC). The following procedure was used. Standards were prepared by adding 0.5, 1.0, 2.0, 4.0, and 6.0 mL aliquots of ethanol to 100 mL volumetric flasks each of which contained 5.0 mL of propanol (Internal Standard). The solutions were made up to the mark with water. The Whiskey sample was prepared by adding 20.0 mL of Whiskey to 5.0 mL of propanol in a 100 mL volumetric flask and making up to the mark with water. The GC analysis of the standards and the sample was undertaken and the results are presented in the Table: What is the % whiskey in the sample OA. 15.4 OB. 17.2 OC. 19.6 D. 24.1 Reset Selection whiskey AEtOH Аргон 3702 32560 8706 38490 18892 41870 32750 36340 35775 35880 48339 31574 A
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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