Objective: The purpose of the lab is to learn filtering techniques. Specifically‚ to form and filter a calcium carbonate precipitate using a Buchner funnel. Procedure: a.) Prepared a mixture of .5 M calcium nitrate (45 mL) and .01 M sodium carbonate by combining and stirring the two liquids in a beaker. Allow the mixture to stand. b.) Prepare the filtration assembly. The assembly consists of a tapered flask with a buchner funnel inserted in the top. The funnel has a rubber stopper attached
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heavier | F | rise | black | presence of starch | | plantain | yellow | no presence of starch | | lettuce | yellow | presence of starch | | chicken | black | no presence of starch | Changes Questions Use what you learned in this lab to answer the following questions: A. Suppose a household product label says it contains sodium hydrogen carbonate (sodium bicarbonate). How would you test this material for the presence of sodium bicarbonate? B. You know what color phenolphthalein
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WIRELESS VIBRATION MEASUREMENT SYSTEM Vibrations are caused due to mechanical oscillation of a structure about an equilibrium point. There will be vibrations involved everywhere where there is any rotating system‚ mechanical system is involved. The vibrations involved at in these places will of high frequency. There will some places where the vibrations of lo0w frequency will be present which will also disturb the normal operation of the system or faultiness in the values measured by the system
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MANAGEMENT OF LABORATORY HOM 101: Fundamentals of Health Care Management Dr. Maisoun Al-Sharif Fall 2012 By Mustafa Malaka Abstract Our report will describe the clinical laboratory department‚ the services provided‚ and the different sections and functions in the department. We will highlight every important aspect related to the clinical laboratory department in detail as well as our suggestions and the areas that can be improved. Our conclusion will include a four minutes video
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Theory The first experiment focused on the concept of errors and uncertainties that are obtained during measurements. For an experiment to be successful‚ especially those that involve measurements‚ the number of significant figures must be known. Significant figures are the digits required to express a measured quantity and thus reflect the accuracy of the measurement. Uncertainty is defined as the smallest increment that can be measured and is defined by the instrument used. An error is defined
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Analytical measurement: measurement uncertainty and statistics Ricardo Bettencourt da Silva‚ Ewa Bulska‚ Beata Godlewska-Żyłkiewicz‚ Martina Hedrich‚ Nineta Majcen‚ Bertil Magnusson‚ Snježana Marinčić‚ Ioannis Papadakis‚ Marina Patriarca‚ Emilia Vassileva‚ Philip Taylor Editors: Nineta Majcen‚ Vaidotas Gegevičius Joint Research Centre Analytical measurement: measurement uncertainty and statistics Editors: Nineta Majcen Vaidotas Gegevičius Authors: Ricardo Bettencourt da
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The Purpose of lab 1.4 Measuring Volume by Displacement of Water was to determine the fraction of air in different granulated solids. The lab cocised of one test done on four different granular solid; with up to 3 trials on each solid. When all tests are done and put in tables‚ and the calculations are made‚ the conclusion is that grain size does not affect that fraction of air. To be able to find the fraction of air‚ 3 measurement had to be taken‚ the volume of the solid with air‚ the volume of
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Laboratory Report 1 Title : Accurate Measurement of Mass and Volume Part A: The Formula of Hydrated Copper (II) Sulfate Aim: The objective of this experiment is to find out the accurate mass of a solid and to calculate the moles of an unknown. Materials: The materials used in this experiment are Hydrated Copper (II) Sulfate‚ weighing bottle‚ analytical balance‚ laboratory balance‚ casserole‚ spatula‚ and hotplate. Methods: First‚ approximate 1.0g of hydrated copper (II) sulfate was
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Laboratory Apparatus Beakers are useful as a reaction container or to hold liquid or solid samples. They are also used to catch liquids from titrations and filtrates from filtering operations. Bunsen burners are sources of heat. Burets are for addition of a precise volume of liquid. The volume of liquid added can be determined to the nearest 0.01 mL with practice. Clay triangles are placed on a ring attached to a ring stand as a support for a funnel‚ crucible‚ or evaporating dish.
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Introduction to Measurement Mass‚ Length‚ and Volume Introduction Much of what we know about the physical world has been obtained from measurements made in the laboratory. Skill is required to design experiments so that careful measurements can be made. Skill is also needed to use lab equipment correctly so that errors can be minimized. At the same time‚ it is important to understand the limitations of scientific measurements. Concepts Measurement Significant figures Accuracy
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