"Separation Techniques Extraction Of Benzoic Acid" Essays and Research Papers

Separation Techniques Extraction Of Benzoic Acid

Introduction: The theory behind the extraction of a solution containing benzoic acid, cellulose, and methyl orange involves many components pertaining to the fundamental ideas of solubility and polarity. Using the concepts of like dissolving like and acid base reactions, a solution of organic acid (benzoic acid), a water soluble compound cellulose, and an organic soluble compound methyl orange, can be separated and benzoic acid can be isolated by a method of extraction. At the fundamental level...

Acid, Chemistry, Liquid-liquid extraction 915  Words | 3  Pages

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Extraction of Benzoic Acid

to practice common organic laboratory techniques inside the lab to get one oriented to the basic methods of procedure that can be used for later experiments. This experiment involves the separation of benzoic acid from a more crude form, consisting of benzoic acid, methyl orange, a common acid/base indicator, and cellulose, a natural polymer of glucose (Huston, and Liu 17-24). The technique that is used to perform this separation is called extraction. Extraction is a systematic process of separating...

Acetic acid, Benzene, Diethyl ether 1211  Words | 3  Pages

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The Extraction of Benzoic Acid

Introduction Extraction is a purification technique used in organic chemistry to separate compounds from a mixture of two or more compounds. There are three different extraction techniques: liquid-liquid extraction, solid-liquid extraction and chemically active extraction. All three types of extraction follow the same principle. Organic molecules dissolve in organic solvents and polar molecules dissolve in aqueous solvents. This phenomenon is observed because of the intermolecular forces between...

Acetic acid, Benzene, Chemistry 2064  Words | 6  Pages

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seperating techniques for benzoic acid

Unit 4B Task 2 Title Recrystallization of benzoic Acid Aim Equipment 1. Erlenmeyer flask 2. Graduated cylinder 3. Hot plate 4. Small beaker 5. Ice bath (if necessary) 6. Filter paper 7. Buchner funnel 8. Spatula 9. Weighing machine Method 1. Weighing paper was used to weigh approximately 1.00g of ‘impure Benzoic acid to produce re crystallization’. 2. Moved it to a 125ml Erlenmeyer flask. 3. Poured approximately 20ml of distilled water by using a graduated cylinder...

Chemical substance, Chemistry, Crystal 764  Words | 3  Pages

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Separation of Benzoic Acid and Acetanilide

Olumba Obu Unknown #: 146 Fall-11 Organic Chemistry Midterm Report 13 October 2011 Table of Contents Separation of Benzoic Acid and Acetanilide 3 Extraction and Purification of Caffeine from Tea 4 Extraction of Trimyristin from Nutmeg 5 Conversion of t-butanol to t-butyl chloride 6 Appendix 7 Calculations 8 Literature and Experimental Values of Benzoic Acid and Acetanilide 9 Experimental Caffeine IR 10 Literature Caffeine IR 11 Experimental Trimyristin...

Caffeine, Carboxylic acid, Distillation 1233  Words | 5  Pages

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acid base extraction: naphthalene, 4-chloroaniline and benzoic acid

 Acid-Base Extraction: Separation of an Organic Acid, Base and a Neural Compound Introduction/Background Acid base extraction is a widely used commercial method in separating acids, bases and neutral compounds. This is concept is based on several physical properties of the compounds, such as boiling point, melting points and solubility. The different solubility properties of the protonated and non-protonated forms of these compounds depend on the functional groups...

Acid, Acid dissociation constant, Acids 978  Words | 5  Pages

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Separation of a Mixture of Solids

Lab 3 – Separation of a Mixture of Solids Cathy Lab Partners: Chelsea Brooke Sept 4, 2012 Chemistry 131A Dr. Vicki H Audia Pelab Questions: Proposed procedure for separation of a mixture: Use physical properties of the 4 substances to separate. 1. Remove iron with magnet 2. Add water to the mixture to melt the benzoic acid and NaCl then filter out sand. 3. Chill the solution and scoop the acid out leaving a salt solution. 4. Boil water away leaving salt. Purpose: The...

Boiling, Chemistry, Crystal 868  Words | 4  Pages

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Extraction Extraction with acid and alkali

 EXPERIMENT 13: Extraction: Extraction with acid and alkali Objective 1. To recover the benzoic acid and p-dichlorobenzene from its mixture from its mixture by using acid-alkali extraction. 2. To determine the percentage recovery and melting point of the recovered benzoic acid and p-dichlorobenzene. Introduction Acid-base extraction is a process which purifying the acids and bases from mixtures based on their chemical properties. Acid-base extraction is performed to isolate the compounds and natural...

Acetic acid, Acid, Benzene 1686  Words | 7  Pages

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Extraction with Acid and Alkaline

Title:Extraction:Extraction with acid and alkaline Objective: 1. To recover benzoic acid and p-dichlorobenzene from its mixture using acid-alkaline extraction. 2. To determine the percentage recovery and melting point of benzoic acid and p-diclorobenzene. Apparatus:Separatory funnel(250mL),Buchner funnel,beaker. Materials:Benzoic acid,p-dichlorobenzene,ether,10% NaOH,conc.HCl,distilled water, anhydrous CaCl2. Introduction: Organic compounds in an aqueous mixture can be...

Chlorine, Hydrochloric acid, Sodium 2043  Words | 7  Pages

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Separation of Acidic, Basic and Neutral Substances by Extraction

Separation of Acidic, Basic and Neutral Substances by Extraction KEYWORDS Solubility, density, organic layer, aqueous layer, drying agent, protonation, recrystallization, neutralization, extraction ABSTRACT: The purpose of this experiment is to separate the substances in the acidic mixture and identify each constituent in the mixture that were individually separated using extraction. Three reaction tubes were used in the experiment. An acidic mixture containing benzoic acid, naphthalene...

Acid, Benzene, Carboxylic acid 1819  Words | 7  Pages

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Extraction Separation of a Carboxylic Acid, a Phenol, and a Neutral Substance Purpose The objective of the experiment is to identify the three substances in the mixture and to determine the percent recovery of each from the mixture. The unknown will consist of either benzoic acid or 2-chlorobenzoic acid, 4-t-butyl phenol. Determine the weight of crystals and also the percent yield Introduction There are various techniques of extractions, solid/liquid extraction, which...

Acetic acid, Benzene, Carboxylic acid 550  Words | 3  Pages

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Esterification of Methyl Benzoate from Benzoic Acid

from Benzoic Acid October 28, 2010 Abstract: This experiment was conducted to synthesize methyl benzoate from benzoic acid and methanol by using the Fischer esterification method. Methanol (12.5ml) and Benzoic acid (4.9 grams) are heated together in the presence of concentrated sulfuric acid (1.5ml) until equilibrium is achieved. A reflux apparatus is set up for 1 hour to carry out the reaction at the boiling point of the solvent (Methanol, 2.5ml). Then, separation though an extraction apparatus...

Ammonia, Benzene, Distillation 568  Words | 3  Pages

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Acid-Base Extraction with Separatory Funnel

A. Title – Acid-Base Extraction with Separatory Funnel B. Introduction – The main objective of the experiment was the extract an acid, a base, and a neutral compound from a 2:1:1 compound of benzoic acid, p-nitroaniline, and azobenzene. In theory, an extraction technique based on phase distribution should allow two immiscible solvents to separate with a portion of the solute distributed into each. Using a separatory funnel, acids were extracted with bases (NaOH), and bases were extracted...

Acid, Chlorine, Ethanol 732  Words | 4  Pages

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Benzoic Acid

EXPERIMENT 2: Recrystallization and Melting Point Recrystallization (or Crystallization) is a technique used to purify solids. This procedure relies on the fact that solubility increases as temperature increases (you can dissolve more sugar in hot water than in cold water). As a hot, saturated solution cools, it becomes supersaturated and the solute precipitates (crystallizes) out. In a recrystallization procedure, an impure (crude) solid is dissolved in a hot solvent. As this solution is cooled...

Crystal, Crystallization, Laboratory equipment 1714  Words | 6  Pages

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Recrystallization of Benzoic Acid

Abstract The objective of this experiment was to observe multi-step purification of benzoic acid after performing the extraction from a mixture containing benzoic acid, cellulose, and methyl orange. Recrystallization was done to remove impurities from the sample. The amount of BA recovered during recrystallization is much less than the extracted amount of BA. The difference between the pure and impure samples was observed by comparison of melting points. It was found that impure samples will have...

Chemistry, Crystal, Erlenmeyer flask 1920  Words | 6  Pages

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Liquid Liquid Extraction

Experiment II. Separation Of a Sample Mixture By Liquid-Liquid Extraction Reading assignment: Techniques in Organic Chemistry 2nd ed pages 75-99. 3rd ed pages 113-140. Topics and Techniques i) identification of solvent layers of two immiscible solvents ii) partioning of a compound between two immiscible solvents and determination of KD iii) liquid-liquid extraction with aqueous acids and bases with organic solvents. iv) use of drying agents Introduction Liquid-liquid extraction is a method used...

Acetic acid, Carboxylic acid, Chemistry 2104  Words | 6  Pages

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Recrystallization of Benzoic Acid

Recrystallization of Benzoic Acid Objective To purify benzoic acid by recrystallization and gain experience with a basic organic laboratory techniques. Background Products of chemical reactions are often contaminated with impurities. One method for purifying chemicals, recrystallization, takes advantage of the differences in the solubilities of the desired products and the impurities and the tendency for the slow formation of crystals to exclude impurities from the crystalline solid. HC HC...

Chemical reaction, Chemistry, Crystal 743  Words | 3  Pages

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Acid-Base Extraction. Essay

Objectives 1. To separate a mixture of an acid and a neutral compound into its component by extraction. 2. To determine the melting point and the yield of the benzoic acid and the unknown sample. 3. To determine the unknown sample whether is is Trimethylmethanol or 1,2,4,5-Tetrachlorobenzene. Introduction Extraction is a process of transferring a solute from one solvent to another. It is usually used to separate one or more components from a mixture. Diethyl ether, dichloromethane...

Benzoic acid, Chemistry, Chlorine 1295  Words | 4  Pages

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The Separation and Purification of Organic Compounds

The Separation and Purification of Organic Compounds Sunshine Marie Introduction Each year, many thousands of new or unknown organic compounds are prepared or extracted from natural sources such as plants, fungi and animals. In order to identify an unknown organic compound or the components of a mixture of organic compounds, it is necessary firstly to separate and purify the compounds. At any given temperature, a certain number of molecules of a substance in the liquid state have sufficient...

Chemistry, Distillation, Ethanol 1710  Words | 6  Pages

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Separation of a Base Neutral Mixture

Experiment Separation of Organic Compounds by Acid-Base Extraction Techniques 5 A commonly used method of separating a mixture of organic compounds is known as liquid-liquid extraction. Most reactions of organic compounds require extraction at some stage of product purification. In this experiment you will use extraction techniques to separate a mixture of an organic acid, a base, and a neutral compound. Organic acids and bases can be separated from each other and from neutral compounds...

Acid, Carboxylic acid, Chemistry 1589  Words | 6  Pages

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recrystallization of Benzoic acid

Mabel M. Kimble September 21, 2014 Chemistry 234 Recrystallization of Benzoic Acid ABSTRACT The recrystallization of Benzoic Acid was performed to fully master the ability to purify a solid compound. This form of purification technique is especially important in chemical identification, where the melting point of the compound is taken to confirm its purity. In order to perform recrystallization a solubility test much be completed. Four solvents (95% Ethanol, Petroleum Ether, Acetone and distilled...

Distillation, Ethanol, Oxygen 879  Words | 6  Pages

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Separation Techniques

Main Separation Techniques A mixture is usually an impure substance and it is necessary to separate mixtures in order to obtain its pure components. The components of a mixture are not chemically combined. Therefore, they can be separated by physical methods; the components of a mixture will still contain their properties. Methods used to separate mixtures depend on the physical differences between the components of the mixture. The main separation techniques include: Filtration A method which...

Distillation, Ethanol, Separation process 1225  Words | 5  Pages

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Recrystallization and Melting Points Determinantion of Benzoic Acid

Recrystallization and Melting Points Determinantion of Benzoic Acid Abstract In experiment 2, recrystallization was used to purify the crude benzoic acid extracted from a mixture during experiment 1. Then a percent recovery for this recrystallization process was calculated. In experiment 3, the melting point ranges of the crude and purified benzoic acid were both determined by using Melt Temp Apparatus. Introduction Recrystallization is a purification technique for non-volatile solids. The general idea...

Chemical substance, Chemistry, Liquid 2404  Words | 7  Pages

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Chem 201 - Extraction

Extraction (Ch # 07) Faraz Gohar Mr. Wayne Xie Chem 201 10/02/2012 Objectives : 1)To purify samples of organic compounds that are solids at room temperature. 2)To dissociate the impure sample in the minimum amount of an appropriate hot solvent Chemical Index : Naphthalene; mp 82 *C 1,4-Dichlorobenzene; mp 56 *C 4-Chloroaniline; mp 68 - 71 *C; pKb 4.15 Ethyl 4-Aminobenzoate; mp 90 *C; pKb 4.92 Procedure : ...

Acetic acid, Carboxylic acid, Distillation 1057  Words | 4  Pages

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liquid-liquid extraction

Experiment 4 Liquid – liquid Extraction Partners: Ashley Byrd, John Puchelt Abstract: The purpose of the experiment is to separate an acid and a neutral compound using their solubilities in liquid- liquid systems at different pH values. We recovered 0.75 grams of benzoic acid and 0.03 grams of triphenylmethane and found their melting points to be 114.6˚-116.8˚C and 80.3˚C-82.3˚C, respectively. We also found the retention factors for both the benzoic acid and the triphenylmethane to be...

Benzene, Benzoic acid, Chemistry 588  Words | 5  Pages

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Extraction and analysis of two compound

 Extraction and analysis of two compounds from unknown solution C ABSTRACT Liquid C and solid C were both extracted from unknown solution by first using chemically active liquid-liquid extract, followed by vacuum filtration.  Liquid C and solid C were then purified with the use of simple distillation and recrystallization respectively.  Through the process of recrystallization, the percentage purity of solid C was found to be 6.01%.  The melting point range of purified solid C was 117.0 –...

Acetic acid, Benzene, Carboxylic acid 1960  Words | 13  Pages

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Separation of a Mixture of Solids

PURPOSE The purpose of this experiment is to become familiar with the separation of mixtures of solid and learn separation techniques based on the chemical properties of a substance. PROCEDURES 1. Separating out the Iron a. Use your digital scale to determine the mass of your weighing dish. b. Empty the entire mixture of solids from the plastic bag into the weighing dish and determine the gross mass of the total mixture and weighing dish. Compute the net mass of the mixture: this is equal...

Drinkware, Kilogram, Mass 1522  Words | 5  Pages

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Benzoic Acid and Benzoates in Food

Benzoic Acid and Benzoates in Food, Drinks and Medicines Benzoic acid and benzoates are common additives to food, drinks, medicines and cosmetics, and they also occur naturally in many plants. They are useful chemicals in manufactured products because they kill or inhibit both bacteria and fungi and can act as preservatives. Benzoic acid and benzoates are considered to be safe chemicals for humans when they're used in small quantities, but there are at least two situations in which even small...

Benzoic acid, Benzoin resin, Carboxylic acid 906  Words | 3  Pages

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A Separation and Purification Scheme

devising a separation and purification scheme for a three component mixture. The overall objective is to isolate in pure form two of the three compounds. This was done using extraction, solubility, crystallization and vacuum filtration. The experiment was carried out two times, both of which were successful. Background Information: This experiment combined all the knowledge of the previous labs performed throughout the semester. An unknown mixture containing an organic acid or base and...

Acetic acid, Chloroform, Crystal 1426  Words | 6  Pages

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Separation of a Carboxylic Acid, a Phenol, and a Neutral Substance

Objective: The objective of this experiment is to use acid-base extraction techniques to separate a mixture of organic compounds based on acidity and/or basicity. After the three compounds are separated we will recover them into their salt forms and then purify them by recrystallization and identify them by their melting points. Procedure: Extraction of Carboxylic Acid A pre-weighed (0.315g) mixture of Carboxylic acid, a phenol, and neutral substance was placed into a reaction tube (tube 1)...

Acetic acid, Acid, Acid dissociation constant 931  Words | 3  Pages

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Separation of a Mixture of Solids

 Lab #2 – Separation of a Mixture of Solids Abstract The mixed solution contained benzoic acid, iron, table salt, and sand. When separated using water, fuel, or a magnet, their characteristics and properties changed. The mass of the entire mixed solids was 6.6 grams. When the magnet was used, the iron was immediately picked up. The mass for that was 1.7 grams. The table salt was 1.2 grams. Benzoic acid mass was 0.8 grams and the sand was 1.4 grams after being separated.  Introduction ...

Boiling, Chemistry, Crystal 572  Words | 3  Pages

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Recrystallization of Benzoic Acid

Recrystallization of Benzoic acid Chemistry 204-002 Date: 4/9/2011 Hector Ortega Recrystallization is a method used to purify compounds, and this is a very important procedure because compounds are naturally impure. Polarity and solubility play a big role in this experiment and these characteristics are exploited in order to have a crystallization of the desired compound. In this experimented benzoic acid was crystallize using ethanol and water. I chose these solvents based on part C of the experiment...

Benzene, Chemical polarity, Chemical substance 584  Words | 3  Pages

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Use of Extraction to Isolate a Neutral Compound from a Mixture Containing an Acid Impurity.

This was achieved using techniques that allowed the extraction of the acid, the isolation of the neutral compound and the melting point classification of the neutral compound to test the purity of the sample. Chemical Reactions: HA + OH-  A- + H2O R-COOH + OH-  R-COO- + H2O Organic Acid Insoluble in H2O Conjugate base Soluble in H2O Procedure: A 0.170g sample consisting of a mixture of 0.110g of an unknown neutral compound and 0.060g of benzoic acid was mixed with ether...

Acid, Chemical compound, Chemical substance 1235  Words | 4  Pages

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Separation Techniques

Separation techniques are an important part of chemistry. However, their importance is not just limited to chemistry; they are also used in our daily lives. Separation techniques are methods used to separate and/or purify mixtures. There are many kinds of separation techniques that are used in our day to day life, such as filtration, Centrifuging, Decanting, fractional distillation and sieving. Each of these methods has their own specific uses in our daily lives which make our chores much easier...

Chemical engineering, Distillation, Filters 1096  Words | 3  Pages

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Solvent Extraction

SOLVENT EXTRACTION Solvent extraction, also known as liquid extraction and partitioning, is a method to separate compounds based on their relative solubility in two different immiscible liquid, usually water and organic solvent. It is an extraction from one liquid phase to another liquid phrase. Liquid extraction is a basic technique in chemical laboratories, where it is performed using a separator funnel. This type of process is commonly performed after a chemical reaction as part of the work-up...

Acetic acid, Chemistry, Ethanol 1745  Words | 6  Pages

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Acid-Base Extraction: Benzoic Acid Two-Base Extraction

TWO-BASE EXTRACTION OF BENZOIC ACID, 2-NAPHTHOL, AND NAPHTHALENE FROM UNKNOWN SAMPLE # 131 Douglas G. Balmer (T.A. Mike Hall) Dr. Dailey Submitted 11 July 2007 Introduction: The purpose of this experiment was to separate a sample of benzoic acid, 2- naphthol, and naphthalene of unknown proportions using a two-base extraction method. The three components of the mixture will react differently to sodium bicarbonate and sodium hydroxide because each of the bases’ conjugate acids...

Acid, Carbon dioxide, Chlorine 1889  Words | 18  Pages

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Lab 7 Extraction Of Benzoic Acid

 SEGi University Extraction of Benzoic Acid by Balvinder Singh (SCM 015 677) Lab Partners: 1) Surrean Rao 2) Wong Kai Jun 3) Kanaga Luckshimi 4) Sasiskala Regal ECE2332 Chemical Engineering Practices Submitted: 1st October 2013 Supervisor: Mr Ayman William 1.0 Abstract /summary The purpose of this experiment to carry out in the lab is because to determined the capability to water droplet to carry out the liquid-liquid extraction. The studies is to determine...

Benzene, Chemistry, Concentration 1562  Words | 12  Pages

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identification of unknown compound by extraction

Extraction, Purification and Identification of an Unknown Mixture Abstract The purpose of this experiment was 1) to separately extract any amines, phenols, carboxylic acids, salts/sugars and/or neutrals, present in a supplied mixture. 2) to purify two of the components by recrystallisation 3) to identify the two purified compounds by melting point, and mixed melting point tests. The unknown amine was identified as benzocaine, and the unknown carboxylic acid was identified as benzoic acid. ...

Acetic acid, Alcohol, Benzene 1248  Words | 6  Pages

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Separation of Acid, Base and Neutral Compounds from a Solid Mixture by Liquid-Liquid Extraction

Experiment #1: Separation of Acid, Base, and Neutral Compounds from a Solid Mixture by Liquid-Liquid Extraction Introduction Liquid-liquid extraction is a technique used to separate chemical substances in order to purify or identify the various components of a mixture. Flavors, spices, perfumes, and medicines are just some of the everyday things that are extracted from plants and other natural sources [1]. The basic principle used to carry out this separation is the mixing of two liquids that...

Acid, Chemical compound, Chemistry 1570  Words | 6  Pages

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Lab#3 Separation of a Mixture of Solids

Title: Lab #3 Separation of a Mixture of Solids Purpose: To understand the different separation methods and techniques that depend on the chemical properties of a specific substance. Also to become more comfortable with performing those actions of separation so I have them in the future. For this experiment, I will separate a mixture of four distinct substances: sodium chloride, benzoic acid, silicon dioxide, and iron fillings into pure beings. Procedure: Materials: distilled water coffee...

Evaporation, Filter paper, Force 1617  Words | 5  Pages

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Separation of a Mixture of Solids

substance to their pure state. By changing the state of matter from solid to liquid and vies versus during the experiment the student will be able to see the physically means of each substance. During the experiment the student will use varies techniques and materials to separate the substances. The students will use a scale to measure the mass in grams of the substance and subtract the original total to the new total each time to obtain the net mass of the substance. The students will separate...

Chemical substance, Chemistry, Drinkware 1429  Words | 4  Pages

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sample lab reoort on purification and separation of organic compounds

TITLE: SEPARATION AND PURIFICATION OF ORGANIC COMPOUNDS AIMS: To isolate organic, inorganic and component from a given sample. To become acquainted with various separation methods. To examine the solubility behavior of the various compounds in a mixture using different solvents. INTRODUCTION A commonly used method of separating a mixture of organic compounds is known as liquid-liquid extraction. Most reactions of organic...

Acetic acid, Acid, Carboxylic acid 755  Words | 4  Pages

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extraction of unknown

Procedure: First of all it was carried out an acid-base extraction to separate out the components of the mixture of three unknowns, one neutral, one carboxylic acid and one phenolic. In order to make this extraction it was weight 360 mg of each sample of unknown mixture. Also we labeled a tube called “mixture” where we dissolve the unknown in about 4 mL of ether. Separation of the organic acid: We added and mixed, and repeated, 2 mL of 1M Sodium Bicarbonate into the ether mixture. Then a...

Acetic acid, Acid, Carboxylic acid 907  Words | 3  Pages

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Separation of Three Compounds by Extraction

Exp. 2 Separation of Three Compounds by Extraction Introduction: The purpose of this experiment is do demonstrate the proper procedures of extraction and to develop a practical understanding of this method. In this experiment, extraction is used to separate a known acid, base, and neural compound from each other. The first two compounds undergo proton transfer reactions in the presence of acids or bases. Acids RCOOH, like benzoic acid, was deprotonated to form RCOO-. Bases RNH2, like ethyl 4-aminobenzoate...

Acid, Acids, Base 562  Words | 2  Pages

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Chemistry Module 6 Separation of a Mixture of Solid

Abstract: This lab experiment was conduct and taught based upon the primary instruction and introduction to mixtures. With this lab I was able to determine and execute the proper separation of a mixture of solids through various means, such as evaporation and filtration. Using these techniques presented the separation of different ingredients from a mixture was conducted based upon the usage of individual physical properties of each substance presented in the mixture. . Observations: Throughout...

Chemical engineering, Chemical substance, Filter 688  Words | 3  Pages

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Separation of a Mixture of Solids

Separation of a Mixture of Solids Lab: Separation of a Mixture of Solids Experiment   PURPOSE The purpose of this experiment was to learn how to separate a mixture of solids. DATA | | |Data Table 1: Experiment Data | | |Grams |Percent of mixture | |Iron filings |2.2 ...

Analytical chemistry, Filter paper, Jane Arden 618  Words | 4  Pages

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Experiment B Separation of an Organic Acid from a Mixture

Experiment B: Separation of an Organic Acid from a Mixture Pre-lab Properties: (You can try http://sciencelab.com for properties) 5% Sodium hydroxide, p-nitrobenzoic acid, p-nitrotoluene, diethyl ether, and 15% sulfuric acid Purpose: To separate an organic acid from a mixture Up to 100% of missed reporting points can be recovered for this lab Wear safety goggles at all times All materials are either disposed in waste bottles in hoods or returned directly to TA for credit. Never leave compounds...

Acid, Chemistry, Ethanol 606  Words | 2  Pages

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Separation techniques Chemistry

Separation by difference in particle size: Sieving: - Is a way pf separating mixtures of solids, or solids and liquids with different sized particles - The mixture is poured through a sieve and the particles smaller than the sieve pass through while the larger particles are trapped by the sieve - The are commonly used for cooking - E.g. a mixture of rice and water is poured through a sieve to capture rice and remove the water Filtration - Is a technique commonly used for mixtures of solids and liquid...

Distillation, Electromagnetism, Evaporation 624  Words | 2  Pages

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the Extraction lab is to separate and purify benzoic acid, 2-naphthol, and naphthalene. These organic solids are purified by partitioning the solid in 2 immiscible solvents, diethyl ether and sodium bicarbonate or sodium hydroxide. II. Significance a. The significance of the Extraction lab is to purify Acetanilide benzoic acid, 2-naphthol, and naphthalene by determining the partition coefficient. This value is determined by dividing the solubility of the given solute in the extraction solvent...

Carbon dioxide, Chemistry, Diethyl ether 350  Words | 2  Pages

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Separating Acids and Neutral Compounds by Solvent Extraction

Separating Acids and Neutral Compounds by Solvent Extraction Introduction The purpose of this experiment was to use solvent extraction techniques in order to separate a mixture consisting of a carboxylic acid (p-toulic acid), a phenol (p-tert-butylphenol), and a neutral compound (acetanilide). Extraction is the process of selectively dissolving one or more of the compounds of a mixture into an appropriate solvent, the solution that contains these dissolved compounds is called an extract (Manion...

Chemistry, Concentration, Diethyl ether 1456  Words | 5  Pages

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The Extraction of Deoxyribonucleic Acid

THE EXTRACTION OF DNA THE EXTRACTION OF DNA 07/02/2013 | By Laura Green, Tasnim Rahman and Sandra Strammiello | Table of Contents DNA………………………………………………………………………………………..………… 2 The Discovery of DNA…………………………………………………………………………...…………..…………. 4 The Steps for Extracting DNA…………………………………………………………………………………………….…..… 5 Experiment: Which Product Can the Most Visible Amount of DNA Be Extracted From?.................................................................................................

Bacteria, Base pair, Cell 1441  Words | 5  Pages

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Separation of Mixtures Lab

Katie Arrington 09/18/2012 09/19/2012 Title: Separation of Mixtures and Solids Purpose: The purpose of this experiment was to practice the process of separating mixtures of different solids. Procedure: This experiment consisted of different processes to separate a mixture of solids into the four individual solids: sand, benzoic acid, iron fillings, and sodium chloride. To remove the iron fillings from the mixture I used a magnet and scanned it across the entire mixture and the magnet...

Chemical engineering, Evaporation, Ion 615  Words | 3  Pages

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Recrystallization of Benzoic Acid Outline

Experiment 1: Purification of Benzoic Acid by Recrystallization III. Introduction Purification - physical separation of impurities and by-products from an impure sample pure substance. *Distillation- for liquid compounds, *Recrystallization- solid compounds Recrystallization - precipitation of a solid cpd. from a saturated solution in the form of crystals through cooling or evaporation -7 steps: 1) selecting the appropriate solvent 2) dissolving the solute 3) decolorizing the...

Crystal, Crystallization, Solid 1921  Words | 8  Pages

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Separation of a mixture of solids

materials we use today are actually mixtures of pure substances. The separation of these materials into their pure substances can be quite challenging. When we are discussing separations of a mixture that contains pure substances, it all depends on whether you can separate the substances by physical means. That means, utilizing each substances physical properties such as boiling point, melting point, and magnetism. Separation of a Mixture of Solids Lab Report Assistant ...

Ammonia, Crystal, Filter paper 1027  Words | 2  Pages

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Determination Of Partition Coefficient Lab

Experiment 4A: Determination of a Partition Coefficient for Benzoic Acid in Methylene Chloride and Water Experiment 4B: Solvent Extraction I: Acid-Base Extraction Using the System Benzoic Acid, Methylene Chloride, and Sodium Bicarbonate Solution Objective A: To accustom participants (students) to general procedures that are used to obtain a partition coefficient at the microscale level. We will gain experience in such practices as the transfer of microliter volumes of solutions with a Pasteur filter...

Benzene, Dichloromethane, Equilibrium chemistry 605  Words | 3  Pages

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Lab 2 Separation of a Mixture of Solids

Title: Separation of a Mixture of Solids Purpose: Learn and demonstrate how to separate different ingredients from a mixture of solids using different methods based on the properties of each ingredient. Procedure: I weighed mixture and tools, and proceeded to begin separating each ingredient. I used a magnet to separate the iron from the mixture. Then I heated the mixture in water to get the non-soluble sand out. Then I filtered out the benzoic acid after cooling it into a crystal form...

Crystal, Evaporation, Salt 493  Words | 3  Pages

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Organic: Sodium Hydroxide and Erlenmeyer Flask

concept of separating organic compounds by utilizing the concept of acid/base chemistry in so that separation can be done. INTRODUCTION Using acid base chemistry in the separation of substances can be a quite useful technique in organic chemistry. A basic extraction can be carried out by applying a hot solvent such as water to a dry substance like coffee. This will allow for the extraction of caffeine and flavor from the coffee beans. Acid base chemistry can be useful in separating neutral, basic, and...

Acid, Base, Chemistry 783  Words | 3  Pages

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Acid Base Extraction

Acid Base Extraction The purpose of this laboratory assignment was two-fold, first, we were to demonstrate the extraction of acids and bases, finally, determining what unknowns were present. Second, we were to extract caffeine from tea. These two assignment will be documented in two separate entities. Introduction: Acid/base extraction involves carrying out simple acid/base reactions in order to separate strong organic acids, weak organic acids neutral organic compounds and basic organic substances...

Acetic acid, Acid, Acid dissociation constant 1625  Words | 8  Pages

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benzoic acid

 Benzoic acid is a derivative of benzene, also known as sodium benzoate or the salt of benzoic acid. The acid is a preservative and examples of foods that contain high amounts of this salt include sauces and pickles. In addition to its use as a food additive, manufacturers use benzoic acid in the production of artificial flavours, fragrances and as a pH adjuster. Benzoic Acid Uses As a food additive, you can use benzoic acid to preserve different kinds of foods including fruit juices, soft drinks...

Benzoic acid, Citric acid, Flavor 378  Words | 2  Pages

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Lab report: Extraction

Lab report for Experiment #2: Extraction Your Name: Name of TA: Lab Partner’s Name: Lab Section: Title: Experiment #2: Extraction Purpose: What is the purpose of this lab? In your OWN words! Observations: Weighed out 3.2568 grams of chemical mixture that was yellow in color. Dissolved dry chemicals in 38 ml CH2Cl2 with gentle heating. Poured the yellow solution into sep funnel. Added 10 ml CH2Cl2 to flask to rinse, poured solution into sep funnel. Added 15 ml 3 M...

Acid, Acid–base reaction, Alkali 815  Words | 4  Pages

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