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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which consist of talcum‚ cornstarch and salicylic acid j. aniline k. lipstick II. ENCIRCLE THE WORD THAT DOES NOT BELONG TO THE GROUP (2 pts each) 1. rubber‚ teflon‚ PVC‚ sugar 2. sodium nitrite‚ sodium sulfate‚ sodium benzoate‚ penicillin 3. erythromycin‚ depilatories‚ streptomycin‚ chloramphenicol‚ 4. agar‚ ascorbic acid‚ carageenan‚ phenylbutazone 5. dyes‚ lipsticks‚ lotions‚ astringents III. IDENTIFICATION. Identify that which is spoken of. Write the
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BIOREMEDIATION INTRODUCTION:- The process of bioremediation was reportedly devised by George M Robinson in the 1960 during experimentation with dirty jars and the introduction of microbes this was however not applied until the 1972 clean out of the fuel holding tanks on the RMS queen mary. Science 1972 bioremediation has become greater developed as a means of cleaning up spills of gasoline diesel ‚ heavy metals and other easily degraded petroleum products (National Research Council 1993). Bioremediation
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stronger than Tums. Procedure: 1) Crush 2 small Rexall’s and put in a flask. 2) Crush 1 Tum and put in a flask. 3) Poor 25ml of warm water in each flask. 4) Let flasks sit for 6 minutes and swish around fluids every 20 seconds. 5) Add 5 drops of methyl orange to each flask. 6) Record observations. 7) Add 1ml of NaOH until you see a color change (both flasks are the same color) 8) Record amount of NaOH used for each antacid. 9) The flask that needed the least NaOH is best/more effective. 10)
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packaging material. Though lot of engineering goes into it‚ but the basic principal remains the same. Heat treatment is an approved Quarantine treatment under international standard for phytosanitary measures (ISPM-15) and it is an alternative to Methyl bromide fumigation treatment for wood packaging material of the export consignment. "Heat Treatment vs. Fumigation" HT is an eco-friendly method with least detrimental affect on the environment‚ especially during
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Page : First Issued : Revised : Product‚ MSDS No. : 1 of 9 Jan 01‚ 2011 July 01 ‚2011 MMA‚ M-001 MATERIAL SAFETY DATA SHEET 1.CHEMICAL PRODUCT AND COMPANY IDENTIFICATION PRODUCT NAME : Methyl Methacrylate SYNONYM(S) : Methyl 2-methyl-2-propenoate GENERAL USE : Acrylic resin‚ SB Latex‚ Paints‚ etc. MANUFACTURER Company Name : PTT Asahi Chemical Company Limited 2.HAZARDS IDENTIFICATION EMERGENCY OVERVIEW Highly flammable liquid with a flash point of 10℃. Since
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Analysis of Oxygen Bearing Organic Compounds James Matthew Jocson*‚ Gianvittorio Lanta‚ Chiqui Ann Llamado‚ Jeron Manaig College of Science Department of Biology University of Santo Tomas‚ Manila‚ Philippines Abstract Five oxygen-bearing organic compounds were given namely Methanol‚ 2-propanol‚ tert - butanol‚ formalin‚ and acetone. Different tests were done to each sample to differentiate their characteristics. These test were Dichromate test‚ Tollens Test‚ DNPH test‚ Iodoform Test‚ and Lucas
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test for the presence of acids or bases in a substance. Some are available in paper form (litmus) and others in liquid form (methyl orange). INDICATOR | COLOR IN ACID | COLOR IN BASE | LITMUS | RED | BLUE | PHENOPTHALEIN | COLORLESS | PINK | METHYL ORANGE | RED | YELLOW | SCREENED METHYL ORANGE | RED | GREEN | BROMOTHYMOL BLUE | YELLOW | BLUE | THE pH SCALE The strength of an acid or base is indicated
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Bonifacio‚ Prince Zero P.Date Performed: October 00‚ 2014 Group No. 1Date Submitted: October 00‚ 2014 Experiment No. 7 Unknown: 2 Compound: Table 6.1Physical Examination State Liquid Odor Smells like adhesive paste Color Pink-orange Flammability Flammable Table 6.2Physical Constant: Melting Point Parameter Experimental Theoretical (From Literature) Melting Point (oC) Trial 1 Trial 2 Average 88 88 86 86 Table 6.3Solubility Test Sample Solubility Solubility Class Water Ether 5% NaOH5%
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ester and there are two esters that are very close in molar mass‚ methyl acetate and ethyl formate. The methyl acetate and the ethyl formate both have a molar mass of 74.08 g/mol [5][6]. The last step is to distinguish between the two. Both methyl acetate and ethyl formate are described as having a “fruity odour”‚ relatively close boiling points and the same colourless appearance [5][6]. However‚ there is one source that says that methyl acetate has a “characteristically pleasant smell reminiscent of
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