CHEMISTRY PRACTICALS CLASS-XII EXPERIMENT No. 1 AIM – (a) To prepare 100ml of M/20 solution of oxalic acid. (b)Using this calculate the molarity and strength of the given KMnO4 solution. APPARATUS AND CHEMICALS REQUIRED- Oxalic acid‚ weighing bottle‚ weight box‚ volumetric flask‚ funnel‚ distilled water‚ chemical balance‚ beakers‚ conical flask‚ funnel‚ burette‚ pipette‚ clamp stand‚ tile‚ dilute H2SO4‚ KMnO4 solution. THEORY- (a) Oxalic
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Antiknock agent An antiknock agent is a gasoline additive used to reduce engine knocking and increase the fuel’s octane rating by raising the temperature and pressure at which ignition occurs. The mixture known as gasoline‚ when used in high compression internal combustion engines‚ has a tendency to ignite early before the correctly timed spark occurs (pre-ignition ordetonation) causing a damaging "engine knocking" (also called "pinging" or "pinking") noise. Research[edit] Early research into this
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product was purified by extraction and distillation. Isopentyl acetate was analyzed by infrared spectroscopy and 1H NMR spectroscopy. Reaction Scheme: Mechanism: Key features of the Fischer Esterification mechanism are: a. protonation of the carbonyl group‚ b. the formation of the tetrahedral intermediate‚ and c. regeneration of acid to show its role of catalyst in the reaction. Procedure: The procedure followed was as described in the Wissinger Manual.1 Modifications of the procedure included:
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states electronic cigarettes are not age restricted‚ so anyone of any age can walk into a store and purchase one. Another point of contention is that limited studies have shown that electronic cigarettes can produce formaldehyde‚ a known carcinogen (Carbonyl Compounds Generated from Electronic Cigarettes‚ 2014). Another issues lies in that fact that‚ like real cigarettes‚ electronic cigarettes in most cases contain nicotine‚ which in high concentration is a toxic poison. Since the release of electronic
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Food Science Study Guide Food Science- the discipline in which biology‚ physical sciences‚ and engineering are used to study the nature of foods‚ the causes of their deterioration‚ and the principles underlying food processing Food Technology- the application of food science to the selection‚ preservation‚ processing‚ packaging‚ distribution‚ and the use of safe‚ nutritious‚ and wholesome food Aspects of Food Quality -Appearance -Size and shape -Color -Structure -Transparency
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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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Abstract: In this lab‚ the chemical components of Excedrin and Tylenol‚ two common‚ over-the-counter analgesic drugs‚ were determined by utilizing the technique of thin-layer chromatography‚ or TLC. The active ingredients of Excedrin were caffeine‚ acetaminophen‚ and aspirin with Rf values of 0.11‚ 0.38‚ and 0.61‚ respectively. The lone active ingredient of Tylenol was acetaminophen with an Rf value of 0.39. The elution sequence obtained in the experiment is as follows: ibuprofen (least polar)
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Experiment 1: Isolation of Casein from Milk * pH of milk – 6.6 * milk = 87.1% water‚ 4.9 % CHO 3.9 %‚ fats‚ 0.7% minerals Experiment 2: Protein Hydrolysis and Characterization | Reagents | Principle | Test for | Positive Result | Negative Result | Biuret | CuSO4‚ NaOH | Complexation of Cu+2 with amide N atoms | Polypeptide bonds | Violet/purple solution | Blue color solution | Sakaguchi | 10% NaOH‚ 0.02% α-naphtol solution‚ 2% NaOBr | arginine condenses with α-naphtol and NaOH
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BIOLOGY TEST NOTES Biology is the study of life Living organisms share a set of characteristics that collectively set them apart from non-living matter Living organisms use molecules that contain instructions for building other molecules Living organisms gather energy and materias from their surrounding to: Build new biological molecules Grow in size Repair their parts Produce offspring All organisms are composed of the same macromolecules (proteins‚ fatty acids/lipids‚ carbs and nucleic
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Synthesis of an Alkyl Halide: A Nucleophilic Substitution Reaction Unknown Letter: B 23 April 2013 Academic Integrity Statement: “Experimental data may be collected with other students in organic chemistry labs. However I understand that sharing information required for a lab report (including but not limited to word processing or spreadsheet files‚ calculations‚ graphs‚ conclusions and additional problems at the end of the lab report) with other students is a violation of the University
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