protective clothing such as gloves. When the substances are in use‚ they must be signed out of the store and dated and when they are being put back they also must be signed and dated which declares they are still in good condition. Handling glassware Handling glassware in the laboratories is pretty basic as there is safety rules in the lab such as no running with the glass and must be handled responsible. When the glass is being prepared‚ it is labelled and when it is returned it is washed and un-labelled
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Laboratory approvals) • Custody-transfer approvals • Data-output requirements (i.e.‚ 4–20 mA‚ relay‚ digital or simple display) • Calibration and re-calibration requirements • Maintenance issues • Operating costs • Connection styles (flanged‚ wafer‚ threaded‚ weld-on and so on) MAGNETIC FLOW METER A Magnetic flow meter is a volumetric flow meter which does not have any moving parts and is ideal for wastewater applications or any dirty liquid which is conductive or water based
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gravimetric analysis; types of precipitates‚ solubility products‚ factors affecting solubility of precipitates‚ von Weimarn ratio‚ co-precipitation problems‚ minimization of co-precipitation problems‚ gravimetric calculations and applications. f. Volumetric analysis (10.5 hours) Acid-base titrations‚ buffers‚ acid-base indicators‚ titration curves‚ precipitation titration methods‚ complexometric and redox titrations‚ problem solving‚ applications. Multimethod analysis (solving problems involving
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Windy T. Padilla BIO 008 OP 1-1 Dr. Elmo Ado Laboratory Instruments: Test Tube -A test tube‚ also known as a culture tube or sample tube‚ is a common piece of laboratory glassware consisting of a finger-like length of glass or clear plastic tubing‚ open at the top‚ usually with a rounded U-shaped bottom. Test Tube Rack - A test tube rack is a gadget used in the laboratory for holding test tubes. It is made of a base that has a platform which is mounted
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INTRODUCTION: In atomic spectroscopy the samples are vaporized at 2000-8000k. The process of this involves two steps ‚ one is atomization of sample and the other is absorption of light radiation from light source. The atoms in the vapour are measured by absorption or emission at characteristic wave lengths. The main usage of this was to detect one element from another in the complex sample which has taken ie.‚ it has ability to perform multiple element analyses. Absorbance should obey Beer’s law
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I. Objective: The objective of this experiment is to determine the mass percent of iron in an iron compound using a spectrophotometer. From there‚ determine which iron compounds are in the stock room bottles based off of the experimental mass percent results. II. Introduction: The objective is to determine the mass percent of iron in an iron compound using a spectrophotometer. From there‚ determine which iron compounds are in the stock room bottles based off of the experimental mass percent results
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+ CrO42-(aq) → Ag2CrO4(s) and results in a color change from yellow to reddish-brown at the end point. Knowing the molarity of the titrant allows for calculation of the chloride concentration. Materials: volumetric pipettes‚ tubes‚ 250 mL Erlenmeyer flasks‚ 50 mL buret‚ 16.7 g/1L of AgNO3‚ CrO4 solution. Weigh out the sample (NaCl + KCl mixture) into a dry tube in a range of 0.150 g to 0.250 g. Dissolve the salt with water to 10 mL/15 mL/20 mL. Pipette a 5 mL aliquot of diluted salt
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Absorption to Activation Energy Calculating the rate constants‚ half-lives‚ and activation of a reaction by monitoring the change in absorption Department of Chemistry Dusten Dussex Lab partner: John Drury Lab date: February 7th‚ 2013 Due date: February 21st‚ 2013 Introduction In this experiment we are analyzing the relationship between reaction rates at different concentrations and temperatures to determine the true rate constant‚ activation energy‚ reaction orders‚ and half-life
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experiment‚ the solution being standardized is compared to a known standard. This known standard can be either a solution that is already a standard solution or an accurately weighed solid material. The accuracy of standardization depends on the glassware and quality of the reagent used to prepare the standard. Reagents used as standards are divided into primary reagent and secondary reagent. A primary reagent can be used to prepare a standard containing an accurately known amount of analyte. A primary
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pH Affecting on Amylase Enzyme Is there a difference in the concentration of pH in the amylase enzyme activity? The null hypothesis would be that there will be no difference in the concentration of pH and alternative hypothesis would be that there will be a difference in the concentration of pH. The predication if that there will be a difference in the concentration of pH. The pH affects on enzyme activities‚ one of the enzyme that was used in the process was amylase. When a serial dilution was
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