EXPERIMENT 4 TITLE Complex Formation and Precipitation. INTRODUCTION Precipitation is the formation of a solid in a solution as the result of either a chemical reaction‚ or supersaturating a solution with a salt resulting in solid material collecting on the bottom of the beaker (Housecroft & Constable‚ 2006). When the solution has been supersaturated by a compound and no more material can be supported by the solution‚ it considered as precipitate. Commonly‚ the solid will fall out of the
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Chemistry Practical Report: Topic: Determining the Empirical Formula of Magnesium Oxide Patrick Doan 11 CHEM 11 26/9/08 Table of contents 1.0 Aim 1 2.0 Theory 2-3 3.0 Materials 4 4.0 Method 4 5.0 Results 4 - 5.1 Qualitative Observations 4 - 5.2 Example Calculations for each Calculated Value 5-7 -5.21 Experimental Values and Associated Errors 5-7 - 5.3 Accumulated Raw Data 8 - 5.4 Mean Experimental
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Descriptive Adjectives of Personality and Their Effects on Perception Juliette Metelus St. Thomas University Abstract The goal of this experiment was to examine rather a) “warm/cold” central trait groups differed the perception participants have of given stimulus persons “Adam/Alice” based on a written biography‚ and b) if gender of the stimulus person manipulated the variable‚ and c) if the non-manipulated gender of the participants responded different to the same variable. The description
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Chapter 1 Early post-war period In 1945‚ a family standing almost anywhere in Europe found themselves in a nation which was‚ or had recently been: (a) ruled by a brutal fascist dictator‚ (b) occupied by a foreign army or (c) both. As a direct result of these governmental failures‚ tens of millions of Europeans were dead and Europe’s economy lay in ruins. Worse yet‚ the Second World War was not an isolated historical event. If the parents were middle-aged‚ it would have been their second experience
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BUS103 Assignment Ellyn Hurst Florentina Benga Wednesay 4.00 – 5.00 Word count: 1418 A contract is an agreement containing promises made between two or more parties with the intention of creating legal rights and obligations enforceable in a court of law. There are three essential elements that must be proven to establish a contract. The first element that must be established is whether or not there was an agreement between the parties. There must be an offer proposed by on party‚ and
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Chemistry – Titration experiment I – Standard Solution Prep Preparation of a standard solution of sodium carbonate Anhydrous sodium carbonate is a suitable chemical (primary standard) for the preparation of a standard solution. Standard Solutions are critical in chemistry because you need to have solutions with an EXACT known concentration and volume. Chemicals/Materials: solid sodium carbonate (Na2CO3) distilled water Apparatus: 250cm3 volumetric flask 250cm3 beaker Glass stirring
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Heavy calcium carbonate grinding mill: 1) High capacity 2) Low consumption 3) Finished fineness adjustable Detailed Product Description about Heavy calcium carbonate grinding mill Heavy calcium carbonate grinding mill is mainly applied to grind non-inflammable‚ non-explosive and brittle materials with Mohs’ hardness under six. Such as calcite‚ chalk‚ limestone‚ dolomite‚ kaolin‚ gypsum‚ and talc etc‚ totally more than 100 kinds of materials. Product fineness can be controlled between 300~3000
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In this experiment‚ gravimetric analysis will be used to determine the unknown metal carbonate. Gravimetric analysis. Gravimetric analysis is a method where an ion being analyzed can be classified through their mass (Yoder 2018). Due to the fact that carbonates can be hygroscopic‚ which means it would be able to absorb water from water vapor‚ extra precautions have to be taken place to be able to get an accurate mass (Helmenstine 2017). This can be done by using a drying oven and a desiccator. A
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calcium carbonate in eggshells. Introduction To avoid the breakage of eggs before reaching market‚ the eggshells needs to be as strong as possible. The strength of eggshells is mainly determined by the percentage of calcium carbonate in it. In order to monitor the quality of eggshells‚ the following experiment has to be done to determine the percentage of calcium carbonate in eggshells. In this experiment‚ back titration is used. First‚ excess acid is reacted with the calcium carbonate in eggshells:
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Calcium carbonate in an egg shell Aim: is to find and work out the percentage of calcium carbonate by mass in eggshells by using acid base “back titration” Introduction: Calcium Carbonate‚ CaCO₃‚ is a compound which is polymorphic and therefore means that it can be found in a variety of different objects or organisms. For example: Rocks (limestone‚calcite)‚ sea snail shells‚ Eggshells‚ pearls and many more. This investigation will focus on finding out the percentage mass of calcium carbonate in a
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