p. 1 Megan Ly Chemistry 231L February 20‚ 2013 SOLUBILITY Purpose: To better comprehend solubility behavior by investigating the solubility of various substances in different solvents‚ looking at miscible and immiscible pairs of liquids‚ and observing the solubility of organic acids and bases. Reference:
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SPM CHEMISTRY REVISION MODULE FOR THE MASTERY OF THE BASICS IN SPM CHEMISTRY Panel : 1. 2. 3. 4. June Ling S J Chen Soo Chien Felix Ngui Jong Kah Yin SMK St Joseph‚ Kuching Kolej DPAH Abdilah‚ Kuching SMK Tabuan Jaya‚ Kuching SM Sains Kuching REVISION MODULE FOR THE MASTERY OF THE BASICS IN SPM CHEMISTRY Page Compiled and edited by : Jong Kah Yin 1 SPM CHEMISTRY INDEX CONTENT 1 REVISION CHECK-LIST Form 4 Form 5 2 WRITING EQUATIONS 2.1 Charges of ions 2.2 Formulae of compounds
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amino acid with gentle heat applied from hot plate. TLC of Amino Acid Fractions: Another TLC plate was spotted comparing the most concentrated fraction from each of the pH levels with the unknow mixture. The TLC developing jar was prepared with 4:1:1 propanol/acetic acid/water. The plate was placed in developing jar once spotted and allowed to develop until the solvent front reached ¾ of the height of the plate. Once the plate developed‚ it was removed and the solvent front was marked‚ then allowed to
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IGCSE Chemistry 2012 exam revision notes by Samuel Lees Contents: 1. The particulate nature of matter 2. Experimental techniques 2.1 Measurement 2.2 (a) Criteria of purity 2.2 (b) Methods of purification 3. Atoms‚ elements and compounds 4.1 Atomic structure and the Periodic Table 4.2 Bonding the structure of matter 3.2 (a) Ions and ionic bonds 3.2 (b) Molecules and covalent bonds 3.2 (c) Macromolecules 3.2 (d) Metallic bonding 3 Stoichiometry 4
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PRODUCTION OF BIODIESEL FROM KARANJA OIL BY TRANSESTERIFICATION INTRODUCTION Majority of the worlds energy needs are supplied through petrochemical sources‚ coal and natural gases‚ with the exception of hydroelectricity and nuclear energy. All these sources are finite and at current rate of usage these will be consumed shortly. The high energy demand in the industrialized world as well as in the domestic sector and pollution problems caused due to the widespread use of fossil fuels make it
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Research Article Vol: 2; Issue: 1 SYNTHESIS AND ANALYSIS OF BENZOPINACOL FROM BENZOPHENONE BY PHOTOREDUCTION IN GREEN CHEMISTRY. 1 Lata.C.Potey‚ 2* Dr. Satish B. Kosalge‚ 3 Rajeshwari S. Sarode 1 2 Assistant Professor‚ Hi-Tech College of Pharmacy‚ Chandrapur. Principal‚ Hi-Tech College of Pharmacy‚ Chandrapur 3 Assistant Professor‚ Hi-Tech College of Pharmacy‚ Chandrapur. Date Received: 11 TH Jan 2014 Date of Accepted: th 16 Jan 2014 Date Published: 18th
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Considerations 1. 1-Butanol and 1-bromobutane are toxic and irritating. Avoid all contact by constantly wearing goggles‚ gloves and working in the hood. Neither of these compounds can be poured down the drain. Like all products‚ 1-bromobutane should be turned in to your TA in a labeled vial. Any excess butanol should be discarded in non-halogenated waste. 2. H2SO4 is extremely corrosive. In very diluted form it can be poured down the drain‚ all other precautions described for butanol apply. 3
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dynamic changes in current consumer demand and market trends‚ the area of Active Packaging (AP) is becoming increasingly significant. Principal AP systems include those that involve oxygen scavenging‚ moisture absorption and control‚ carbon dioxide and ethanol generation‚ and antimicrobial (AM) migrating and nonmigrating systems. Of these active packaging systems‚ the AM version is of great importance. This article reviews: (1) the different categories of AP concepts with particular regard to the activity
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Experiment 5 Title : Thin Layer Chromatography Objectives: i. To distinguish polar and non-polar solvents. ii. To familiar with the analysis technique by using the thin layer chromatography. iii. To differentiate the retention factor‚ Rf for different compounds. [pic] Result: |Compound |Distance traveled by the compound | |o-nitroanaline |2.45
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influence of the concentration of La3+ was studied using increasing volumes of a 5.1×10-4 M solution in the range of 0.05 – 2.0 mL of the reagent. The tested diluting solvents included water‚ dimethyl sulfoxide‚ acetonitrile‚ dioxan‚ ethanol‚ methanol‚ and 2-propanol. After mixing the studied drug solution with all reagents‚ the reaction mixture was allowed to stand at room temperature for different time interval and the fluorescence intensity was measured. Different surfactants were added to the
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