Sedimentary rocks in Pakistan range in age from Precambrian to Miocene i.e from oldest to youngest on the geological time scale form 542 million years to latest. Luckily for geoscientists all of them are exposed in different parts of the country. Lithologically they constitute sandstone‚ limestone‚ shale and mixed lithologies of them all. These rocks are exposed all along the mountain ranges from Islamabad in north to Karachi in the south. Igneous rocks are exposed north of Peshawar or only at
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505g Total volume of water used: 15mL Weight of pure compound recovered: 0.262g Melting point of recrystallized benzoic acid: 122-126 degrees Celsius Recovery %= 0.262g/0.505g x 100= 52% Pure benzoic acid was obtained by the process of recrystallization. 0.505g of
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Experiment 2: Extraction – Evaluation Summary Labs reports must be typed and chemical structures must be drawn with ChemDraw. Report must not exceed three pages (including this page). Page limit does not include any attached spectra or references. ** Deductions for hand written report/structures and exceeding page limit ** Report Breakdown Data/Results: _________________ /10 Discussion: _________________ /10 Report Total: _________________ /20 Other Lab Marks
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K(εT)n ‚ where K and n are constants. Finally‚ give a practical process that will strain harden an alloy. c) Thermal processing of a metal allows for the recovery of the initial mechanical properties of an alloy. Describe briefly the recrystallization process indicating the driving force for the process‚ the change in the defect structure of the alloy‚ and the change in microstructure‚ if any. d) Describe a second process which can strengthen a metal. Also‚ explain the importance of dislocations
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comprehensive list there are drugs and chemicals that may also be harmful to those with G6PD deficiency that are not on this list an individual should always consult their doctor for advice before taking any medication. Generic Name Trade Name Indication Acetanilide - Once used as analgesic/antipyretic Methylene Blue - Methaemoglobinaemia Naphthalene - Lavatory deodorant Old fashioned mothballs Nalidixic Acid Mictral Urinary tract infection Negram Uriben Nidazole Ambilhar Schistosomicide
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reacting the Grignard reagent with acetophenone. The end product was 1‚1-diphenylethanol. Its recorded melting point range was 80°C-81°C‚ which is the same as its literature value. This means that there was no or very little impurity in the recrystallization process From the IR‚ it is evident that the hydroxyl group (-OH)‚
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UNIVERSITI TEKNOLOGI MARA COURSE INFORMATION Confidential Code Course Level Credit Hours Contact Hours : : : : : CHM 556 Organic Chemistry II Degree 4 3 hr (Lecture) 3 hr (Practical) 3 Core CHM 456 Part Course Status Pre-requisite : : : Course Outcomes : Upon completion of this course‚ students should be able to: 1. Determine functional groups present in organic compounds using Infrared Spectroscopy and interpret Nuclear Magnetic Resonance spectra and relate the information to structural
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to yield benzoin. Thiamine catalyst along with water and ethanol were added to the benzaldehyde‚ then NaOH was added until the solution turned yellow. After recrystallization‚ the product was benzoin. Step two was the oxidation of benzoin to benzil. Nitric acid was added to the benzoin and heated‚ this was followed by recrystallization to yield the benzil. In step three the benzil from step two was to be synthesized tetraphenylcyclopentadienone. The benzil and 1‚3-diphenylacetone were mixed
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Introduction The purpose of this experiment is to validate the effectiveness of different types of disinfectants and antibiotics on microbes. It was hypothesized that antibiotic products work better than regular products such as soap‚ hand sanitizer etc. According to the handout that was provided in this laboratory work‚ it was believed that many of the environs occupied by individuals are exposed to different types of microbes and methods of eradicating such microbes has been studied over the years
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and assess the purity of its product‚ to determine the best solvent for a column chromatography separation‚ to determine the somposition of each fraction from a column chromatography separation‚ and to determine whether a substance purified by recrystallization. (2) The most common stationary phases or adsorbents using in TLC are silica gel‚ alumina‚ and cellulose. For each‚ (a) draw its chemical structure and (b) label it as polar or non-polar. Silica gel - polar alumina - polar cellulose
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