The purpose of this lab was to model the significant differences in density that oceans experience when glaciers and polar ice caps melt. It demonstrated that the variation in density greatly affects salt water. I discovered that the increase in freshwater causes a decrease in density. I made three claims. First‚ the higher the salinity of the water is‚ the denser it will be. This was shown in my data by the fact that‚ with 0mL of fresh water‚ the density was 1.108 g/mL For every milliliter of fresh
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– Separating Sand & Salt Purpose: The purpose of this experiment is to separate a mixture of sand and salt. Materials: Small beaker Electric balance Sand Salt Water Graduated cylinder Stirring rod Filter paper Flask Rubber policeman Wash bottle Funnel Bunsen burner complete with rubber tubing and a source of gas Hot hands Insulator pad Ring stand complete with a ring Wire gauze Striker Pre-lab Questions: 1. Water will be useful in separating the salt and sand because salt is soluble in water‚
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FACULTY OF RESOURCE SCIENCE AND TECHNOLOGY DEPARTMENT OF CHEMISTRY STK 1094 – Analytical Chemistry 1 EXPERIMENT NO : 1 TITLE OF EXPERIMENT : ACID – BASE TITRATIONS DATE OF EXPERIMENT : 27 SEPTEMBER 2013 GROUP MEMBERS & MATRIX NUMBERS : 1. DELVINO DISONNEO ANAK DALIN (44903) 2. GOH CHIA HONG (44927) 3.LINDA CHONG (41889) 4.LIM WHYE KIT LEONARD(41874) 5. LAB FACILITATOR : REPORT DUE DATE : 4 OCTOBER 2013 INTRODUCTION The laboratory
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Chemistry 121 Colligative Properties Lab Demonstration of Selected Calculations from Choice I Determination of Kf for Naphthalene To determine the Kf for naphthalene‚ we need to find the difference in the freezing point of pure naphthalene and the solution of 1‚4-dichlorobenzene in naphthalene. Let’s say that we did this experiment‚ used 1.00 g 1‚4-dichlorobenzene in 10.00 g naphthalene‚ and found that the freezing temperature of pure naphthalene was 78.2°C‚ while that of the solution was 75
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Iron‚ Steel and Aluminium Main sources of iron: * second most abundant metal (5% by mass) in Earth’s crust (fourth most abundant element) * found in rock (a mixture of minerals) as one or more minerals (usually a compound) * if a mineral is of economic importance‚ it is referred to as an ore * iron containing minerals include hematite (Fe2O3)‚ magnetite (FeO·Fe2O3 or Fe3O4)‚ limonite (FeO(OH)·nH2O) and siderite (FeCO3) Alloys: * homogeneous mixtures of metals or metals and
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Lab 5 n-Butyl Bromide Preparation Introduction: The purpose of this lab is to properly extract and distill n-butyl bromide It is ideal to perform this technique with accuracy‚ which can be measured by the percent yield. Chemicals: n-Butyl Bromide- clear‚ yellow liquid that is slightly soluble in water. Molar weight of 137.02g and has zero reactivity. Sodium Bromide- white‚ crystals‚ granules. Soluble in water with no reactivity. Molar weight of 102.89g. Sulfuric Acid- colorless liquid
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principle Materials Required: See page 209 Heath Chemistry Laboratory Experiments Procedure: See pages 209-211 Heath Chemistry Laboratory Experiments Data and Observations: Table 1 Equilibrium Involving Thymol Blue REAGENT ADDED STRESS (ION ADDED) COLOR OBSERVATION DIRECTION OF EQUILIBRIUM SHIFT HCl (Step 3) HCl (Step 4) NaOH (Step 5) NaOH (Step 6) Table 2 Equilibrium Involving Thiocyanatoiron (III) Ion REAGENT ADDED STRESS (ION ADDED) OBERSERVATION
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Chemistry 3373F Lab Manual 2008 Modified 11/07 Table of Contents Chem 3373 Laboratory Schedule for Fall 2008.............................................................................2 The Benzoin Condensation of Benzaldehyde ..............................................................................3 Synthesis of Dilantin and Related Compounds (two weeks).........................................................6 Synthesis of an Alkaloid: Pseudopelletierine (two weeks) .............
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Gabriella Posess AP Chemistry- Period C 11/24/11 Iron Complex Lab Purpose: Be able to tell the difference between iron (II) and iron (III) solutions by performing redox reactions between irons oxidation states. Materials: test tube rack 6 test tubes- 25 x150 mm 25 mL graduated cylinder 6 stoppers 6 mL distilled water 6 mL Iron (III) chloride solution (0.02M FeCl3 x 6H2O) 6 mL Iron (II) sulfate solution (0.02M FeSO4 x 7H2O) 1 drop Potassium ferricyanide solution(0.1M K3Fe(CN)6)
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Preparation of Esters Introduction Esters are known for their pleasant smells such as perfumes and artificial flavorings in contained labs. They are formed when a carboxylic acid reacts with alcohol and a strong acid such as a catalyst called sulfuric acid (H2SO4) for this lab. The structural formula for esters can be represented as R-COO-R’. The R and R’ symbolizes different alkyl groups that can be combined to the ester. When naming an ester the first part comes from the alcohol followed
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