1.0 Calibration of Volumetric Glassware 1.1 Introduction: Calibration is the process by which a stated measure such as the volume of a container is checked for accuracy. In general‚ measurements of mass can be determined more precisely and accurately than measurements of volume. Therefore‚ the mass of the liquid contained or dispensed by the glassware will be measured and the corresponding volume calculated using the density of the liquid. However‚ a relatively small change in temperature
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Experiment 2 CALIBRATION OF A PIPETTE Introduction An ordinary laboratory pipette may be expected to deliver its nominal volume with good precision and good accuracy if it is used in the way recommended. In this experiment we investigate the precision and accuracy of such a pipette by making accurate determinations of the mass of water it delivers in repeated operations. Materials 10.0-cm3 pipette‚ 50-cm3 beaker‚ thermometer‚ pipette filler‚ graph paper. Procedure
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Rev. 01/10 JEB GLASSWARE CALIBRATION 1. Objectives Verify the actual volume of liquid delivered by 2 different types of glassware devices. Evaluate which measurement method is better for different uses. 2. Techniques Buret use: Put the buret in a buret stand and approximately fill it with temperature-equilibrated water. Make sure that the tip of the buret is filled with water and that there are no air bubbles remaining in the buret tip or valve. Record the initial level – it does not need to
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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 about
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Calibration of Volumetric Glassware This set of laboratory experiments is designed to introduce you to some of the apparatus and operations you will be using during the remainder of this course‚ including the treatment of data using spreadsheets. While some of the procedures may seem trivial and the results obvious‚ this is a chance for you to develop good laboratory technique. Required Reading D.C. Harris‚ Quantitative Chemical Analysis (8th ed.‚ W. H. Freeman‚ NY‚ 2010) chapter 2 (Tools
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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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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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LABORATORY REPORT I OBJECTIVES The objective of this experiment is to; • Identifying the range and limits of a measuring apparatus. • Rectifying any instrumental error that might be present in an instrument. • Investigating the limits and capabilities of a measuring instrument. • Determining the accuracy of the actual volume of a volumetric pipette‚ volumetric flask & measuring cylinder. INTRODUCTION The purpose of this experiment is to investigate the measurement of the actual volume
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Lab 1: Calibration of Pipettes and Burettes Names TA Name‚ Thursday Lab: 1:40 P.M. - 4:10 P.M. Aim: This experiment sought to gather data regarding water volume gathered in glassware‚ then to statistically analyze the data‚ focusing on average and standard deviation‚ along with relative error gleaned from linear regression. Introduction: This experiment was divided into two parts. For part one of the experiment‚ 25 mL were transferred from a glass pipette to a tarred beaker and weighed
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