Purpose: In this lab‚ a mixture of naphthalene (C10H8)‚ common table salt (NaCl)‚ and sea sand (SiO2) will be separated using the separation techniques in order to demonstrate the properties of mixtures and their ability to be separated by physical means. INTRODUCTION: This lab was based on the separation of the components of a mixture. A mixture can be defined as a physical combination of two or more pure substances. Separation techniques are used to separate components that are not chemically
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Mario Renteria Mrs. Weathers Chem 04a 27 Jan‚ 2012 Lab Report Introduction: A popular technique in separating components of a mixture is paper chromatography. We use paper chromatography to separate mixtures and isolate there components to collect them individually. In this experiment‚ we will use acid- base indicators to help determine the unknown mixture. Acid- base indicators will change in color when the presence of pHs rise and fall when acids or bases are added to a solution. After setting
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Separation of a Mixture: Unknown # 12-Green Chemistry 221 with Professor Thomas Quale May 2012 Formal Lab Report Abstract An unknown sample‚ # 12-Green‚ was separated into its individual variable components‚ iron‚ ammonium chloride‚ silicon dioxide‚ and sodium chloride. The techniques used to separate the components of unknown # 12-Green‚ magnetism‚ sublimation‚ extraction‚ and filtration‚ were chosen based on the unique properties of each component. Using these separation techniques‚ each substance
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5.05 Mixtures & Solutions Lab Report By Nathan Mitchell 4/23/15 Background Information & Research 1. Paper Chromatography is a method used for the separation of colors which are also referred to as colored chemicals/substances or pigments. This method is used for experiments‚ to identify coloring agents and to separate out a compound into its various components. 2. 3 real-world uses for paper chromatography include forensic testing‚ performance enhancing drug testing‚ and Ebola immunization. 3.
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Separating a Mixture of Compounds Exp. No. 2 April 8‚ 2014 I. Purpose The purpose of this experiment is to separate three components; SiO₂‚ NaCl‚ and NH₄Cl through Sublimation‚ filtration and evaporation to determine the mass and mass percentage of each component. II. Experimental Method Equipment Chemicals Evaporating Dish Powdered Mixture A 2 50ml beaker Water Balance Thermometer Bunsen burner III. Raw Data and Calculations Mass of empty evaporating dish 76.00g
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The Separation of a Liquid Mixture by Simple Distillation Objective The purpose of doing this experiment is to separate two miscible liquids samples of cyclohexane and toluene using simple distillation. The objectives will be to record boiling range and volumes (mL) of distillates that are attained during the process of distillation. Background Distillation is a frequently used technique for separating mixtures based on differences in the boiling points of components in the mixture. The
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Aim: The aim of this experiment was to develop a technique to separate a mixture of sand‚ salt‚ iron filings‚ kerosene and water. Hypothesis: It was hypothesized that the heterogeneous mixture of salt‚ sand kerosene‚ iron fillings and water will be effectively separated. It is also predicted that there will be a decrease in each of the substances as a results of sources of error. Risk assessment: Risk | Control Measure | Glass- Fragile‚ lacerations could occur | Extra care
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A safety audit for the gas-solid fluidization experiment was conducted. The following safety concerns were found when performing the audit: operating beyond the operating limits‚ spillage of the beads‚ risk of head injury from bending over to change the beads in the apparatus or from the low bar‚ and congestion of the workspace. One of the biggest safety concerns with this lab involved the small glass beads that acted as the solid in the experiment. If the gas flow rate goes below 50 standard cubic
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In the experiment‚ 0.3 g of mixture was dissolved in 3 mL of t-butyl methyl ether in a centrifuge tube. Then‚ 2 mL of 0.5 M NaHCO3 was added‚ shaken for one minute‚ and allowed to sit for two minutes so the layers could separate. The lower water layer was removed with a Pasteur pipette and placed in a test tube labeled “Acid.” Next‚ 0.5 mL of distilled water was added to wash the ether layer in the centrifuge tube and then discarded. 2 mL of 0.5 M NaOH was added to the remaining layer‚ shaken for
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Separation of Iron‚ Salt and Sand Separating a mixture is an example of a physical change. There are several ways to separate a mixture. The use of one’s hands in pulling the parts of a mixture apart is one example. Filtration is another way to separate mixtures. Filtration is the separation of a heterogeneous (not alike‚ different) mixtures‚ by adding a solvent and passing the resulting mixture through a fine mesh or filter. Evaporation of a homogeneous (alike‚ same) mixture will reveal
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