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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: Principles and Practice
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter12: Solutions
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Problem 12.107QE
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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 3702 8706 18892 32750 48339 31574 Аргон 32560 38490 41870 36340 35775 35880 A
Transcribed Image Text: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 3702 8706 18892 32750 48339 31574 Аргон 32560 38490 41870 36340 35775 35880 A
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