Table of chemicals and reagents with their physicochemical properties (name,molecular formula, molecular weight, pKa, melting point, boiling point, etc.)Write a short outline or a flow diagram of the procedureList and safety issuesRead and understand the MSDS information for each chemical used in this practicalExperimental procedurePlease do not scratch the clear sides of the UV cuvettes as this will invalidate your results.Part 1: Preparation of a calibration curveA calibration curve should be constructed using at least five concentrations of the pure paracetamol standardsupplied in the range 3-15 ug/mL as follows:Weigh about 150 mg of paracetamol accurately and transfer to a 200 mL volumetric flask. Add 50 mL of o.1 MNaOH and dilute to about 100 mL with deionised water (DI). Shake and make up to volume with DI water. Dilute10 mL of the resulting solution to 100 mL (volumetric flask) with DI water (= stock solution). Prepare standardsolutions containing 3, 6, 9, 12 and 15 ug/mL by mixing the appropriate volume of the stock solution with 10 mL0.1 M NAOH and diluting it to 100 mL (volumetric flask) with DI water. Read the absorbance values at 257 nm andconstruct a calibration curve using Cartesian graph paper.%3DAlsonhunceuglae(abebatu0, 19357レ60,0,7970,9969t AuseoyeAverayeAutottullet15 1.210-0.80,60.410.223101214161820Concentration8,60Part 2: Paracetamol assayThe following assay has been adapted from the British Pharmacopoiea (1999).ASSAY - "Weigh and powder 20 tablets. Add a quantity of the powder containing o.15 g of Paracetamol to 50 mlof o.1 M sodium hydroxide, dilute with 100 ml of water, shake for 15 minutes and add sufficient water to produce200 ml. Mix, filter and dilute 10 mL of the filtrate to 100 ml with water. Add 10 mL of the resulting solution to 10mL of o.1 M sodium hydroxide, dilute to 100 mL with water and measure the absorbance of the resulting solutionat the maximum at 257 nm"Calculate:The average amount of paracetamol per tablet using both the calibration curve and the Beer-Lambertlaw (A(1%, 1 cm) at 257 nm = 715)b) The percentage of stated content of paracetamol in the tabletsc) Compare and discuss the results from the two methodsAbsorbance

We will plot a calibration curve with absorbance as y axis and concentration as x axis which will…

Answered: Calculate: a) The average amount of…

Calculate: a) The average amount of paracetamol per tablet using both the calibration curve and the Beer-Lambert law (A(1%, 1 cm) at 257 nm = 715) b) The %3D percentage of stated content of paracet

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

Chapter33: Automated Methods Of Analysis

Section: Chapter Questions

Problem 33.5QAP: Give the advantages and disadvantages of sequential injection analyzers compared to traditional flow...

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Instructions. Carefully review the Constant-Volume Standard Addition material (pages 7 - 13) of the CHEM 146 Lab 2 Manual given its central importance (especially the fully worked example on pages 11 - 13). In this online activity, you are processing and analyzing raw FAAS data identical to what you would obtain in lab. FAAS Lead Analysis by Constant-Volume Standard Addition. Assume we wish to find the Lead (Pb) concentration in ppb for a lake water sample (the "unknown"). Using a pipette, 10.00 mL of lake water is loaded into five 50 mL volumetric flasks. Next, exactly 0.00, 5.00, 10.00, 15.00 and 20.00 mL of standard lead solution at 4.96 ppb (parts per billion) is added. After dilution to the volume, FAAS readings at λ = 283 nm are taken of the five solutions. The resulting absorbance values are presented below. Table 2-1. FAAS Lake Water Sample Lead Analysis. FAAS Absorbance Readings for Lead Standard Volume Additions Absorbance at 283 nm; A283 Vs (ml) S 0.00 5.00 10.00 15.00 20.00…
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Help on all parts please and can you show the full in depth demensional analysis please!
Give the advantages and disadvantages of sequential injection analyzers compared to traditional flow Injection analyzers.
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