Yuen Investigation 21: How Much Copper Is in the Coin? RC Bauer‚ JP Birk‚ DJ Sawyer We calibrated three different molarities of copper (II) nitrate. We tested for the %Transmittance of 1M‚ 0.1M‚ and 0.01M and plotted the data collected on a calibration curve based on concentration and absorbance. We used nitric acid to dissolve a penny to produce another copper (II) nitrate to test its %Transmittance and plot that on the graph to discover the concentration of that substance which came out to be
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Copper Sulphate Calibration Aim The objective of this experiment is to determine the unknown concentrations of solutions. Introduction With the use of absorption of light a spectrophotometer sends UV wavelengths through solutions to determine their concentrations. The light absorbed is measured as the atoms‚ molecules and ions absorb the wavelengths of light that the spectrophotometer gives off (Meah‚2013). The level of light transmitted defines the amount of light absorbed‚ for instance‚ the lower
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Interpretation of Results As observed by the group in a normal diode circuit placed in a forward bias generates a sinusoidal output wave. In order to trim the output waves‚ that are a sinusoidal wave‚ to be generated‚ a clipper circuit was made with the use of diodes. The limiting level of a clipper circuit is the barrier potential of the diode in use. A diode clipper that trims down the positive half cycle input of a wave signal is as positive limiter. The output signal will retain the original
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CALIBRATION AND QUALIFICATION OF EQUIPMENT Dr. Lakshmi M Sundar‚ M. Pharm Ph.D NIPER-Gandhinagar‚ Gujarat‚ India CALIBRATION AND QUALIFICATION Introduction Definitions Regulations and guidelines Analytical instrument Qualification Types of Instruments Calibrations of instruments (few examples) PA-510 Chapter-7 2 ANALYTICAL INSTRUMENT QUALIFICATION (AIQ) Introduction: Wide range of equipment used in pharmaceutical industry to acquire data Analyst - obtain reliable
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Hello all‚ I went into the lab and none of the Ps had notes of calibrations occurring during or between any of the task. P 24‚ 54 and 71 all have massive decreases from baseline to both task. The real problem is that with out a note of when calibration occurred there are three logical explanation for this. First‚ that they ran across campus and were not actually at baseline when baseline measures where taken thus leading to the decrease when they do finally calm down. Secondly‚ the machine could
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Introduction Titration is a volumetric analysis technique used to find the concentration of an unknown substance. There are several types of titration but the one used for this experiment is called acid-base titration as the substance we are titrating is acidic. Acid-base titrations are based on the neutralisation reaction between the analyte and the acidic or basic titrant. The analyte is the solution of unknown concentration and the titrant is the solution of accurately known concentration used
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Floyd Askew 3/19/13 CHEM 1211L Lab Report Introduction The purpose of this lab is to use volumetric analysis to determine the concentration of unknown substances. A sodium hydroxide solution is standardized to assist in finding the concentration of an acetic acid. An indicator must be used to pin point the equivalence point‚ the point in which 1 mole of a substance is equal to 1 mole of another. When that is found‚ we can determine the concentration. HC2H3O2 (aq) + NaOH (aq)
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Smetanova 17‚ 2000 Maribor‚ Slovenia SOP 6 CALIBRATION OF VERNIER CALLIPER GAUGES Issue date 11.7.2003 Issue No. E-1 Approved by Bojan Ačko‚ Ph.D. Changes made AMENDMENT REMOVED No. Section Date ADDED Page Issue No. Section Present issue E-1 is equal to the issue No. 3 dated September 1998 Page Issue No. CONTENTS 1 1.1 INTRODUCTION General aspects 4 4 2 MEASURING EQUIPMENT 4 3 RECEIPT 4 4 CLEANING 4 5
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Analysis of Soda Ash and Volumetric Analysis of a Carbonate-Bicarbonate Mixture Belardo‚ Pia Jobelle J. Department of Chemical Engineering‚ Faculty of Engineering University of Santo Tomas España‚ Manila February 27‚ 2013 Abstract The analyte used is the soda ash which is titrated with an HCl titrant‚ standardized by Na2CO3. The indicators used are phenolphthalein for basicity and methyl orange for acidity. The two volumes of the titrant are then used to calculate percent composition of
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CALIBRATION OF TEMPERATURE AND PRESSURE SENSORS Mechanical Engineering Department Loyola Marymount University Los Angeles‚ California ABSTRACT In this laboratory experiment‚ an Omega Model PX- 236-060GV piezoresistive pressure transducer was calibrated‚ by using an AMTEK model deadweight pressure tester. For the temperature calibration an Jofra Model C-140 temperature calibrator was used. The experiment began by setting up the Jofra Model C-140 temperature calibrator‚ and taking data from
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