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Answer the following questions: 1. Name the active ingredient present in the aspirin tablet. 2. What is the chemical name of Aspirin tablet? 3. Name the solution which is used for making intense violet colour with ASA.

Answer the following questions: 1. Name the active ingredient present in the aspirin tablet. 2. What is the chemical name of Aspirin tablet? 3. Name the solution which is used for making intense violet colour with ASA.

Principles of Instrumental Analysis
Principles of Instrumental Analysis
7th Edition
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Chapter15: Molecular Luminescence Spectrometry
Section: Chapter Questions
Problem 15.10QAP
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A) Standard solution and Beer's law calibration curve 1-Fill in the following table : Concentration For S.1 M¸ x V = Ma x V 0.000725 x 1.0ml Ma x 10.0ml Solution Absorbance Concentration S. 1 8.2 S 3 S 4 ASA of unknown ????????? 2- Plot a graph of Absorbance vs. conc mol /L
Transcribed Image Text:A) Standard solution and Beer's law calibration curve 1-Fill in the following table : Concentration For S.1 M¸ x V = Ma x V 0.000725 x 1.0ml Ma x 10.0ml Solution Absorbance Concentration S. 1 8.2 S 3 S 4 ASA of unknown ????????? 2- Plot a graph of Absorbance vs. conc mol /L
Data Set Exp.5 Use the following data to determine the mass percent of the active ingredient in Aspirin a) Preparation of solutions: volume of salicylic acid volume of FECL3 solution SA1 Iml 9ml SA2 3.5ml 6.5ml SA3 6.5ml 3.5ml SA4 1ml 9ml The concentration of salicylic acid= 0.000725M b) Preparation of “STOCK ASA UNKNOWN" The mass of aspirin= 0.135 g The volume of stock solution of aspirin= 100ml The dilution factor for the stock solution= 50/2 Molar mass of SAS = 180.157 g/mole c) Measurements of Absorbance: Solution Absorbance SA1 0.154 SA2 0.524 SA3 0.789 SA4 0.989 The unknown sample 0.259 Answer the following questions: 1. Name the active ingredient present in the aspirin tablet. 2. What is the chemical name of Aspirin tablet? 3. Name the solution which is used for making intense violet colour with ASA.
Transcribed Image Text:Data Set Exp.5 Use the following data to determine the mass percent of the active ingredient in Aspirin a) Preparation of solutions: volume of salicylic acid volume of FECL3 solution SA1 Iml 9ml SA2 3.5ml 6.5ml SA3 6.5ml 3.5ml SA4 1ml 9ml The concentration of salicylic acid= 0.000725M b) Preparation of “STOCK ASA UNKNOWN" The mass of aspirin= 0.135 g The volume of stock solution of aspirin= 100ml The dilution factor for the stock solution= 50/2 Molar mass of SAS = 180.157 g/mole c) Measurements of Absorbance: Solution Absorbance SA1 0.154 SA2 0.524 SA3 0.789 SA4 0.989 The unknown sample 0.259 Answer the following questions: 1. Name the active ingredient present in the aspirin tablet. 2. What is the chemical name of Aspirin tablet? 3. Name the solution which is used for making intense violet colour with ASA.
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