Quick study guide 20 Examination strategies Before the exam: Focus on revision‚ not re-learning • Listen for verbal clues offered in lectures and tutorials. • Use the Unit Guide to create an overview of themes and topics. • Prepare a pre-examination study timetable. Share your time between subjects‚ according to available marks. • Identify problem areas and work on these first. • Aim for understanding‚ not just memorising the material. • Study actively—verbalise and visualise your
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1/ What is your mom like ? ( My mom‚she’s tall and look very beautiful with her big black eyes and short hair. She’s the one who gave birth to me and I know she unconditionally loves me‚loves our family She’s caring‚open‚honest and very understanding She always works hard to give me everything I deserve She knows what is the best for me and always listens to my problems She takes care of her family well and I love every dishes she cooks My mom‚in other words‚she means everything to me and
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EXPERIMENT 2: SOLUTION PREPARATION AND STANDARDIZATION Submitted by Iris Olaso ______________________________________________________________________________ INTRODUCTION Generally‚ there are two ways in preparing a solution‚ one is by dissolving a weighed amount of solid in a required solvent and the other is by dilution of a concentrated solution into the desired concentration. In diluting concentrated solution‚ the concentration of the diluted solution can be determined by standardization
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p-Nitroaniline sc-272000 Material Safety Data Sheet Hazard Alert Code Key: EXTREME HIGH MODERATE LOW Section 1 - CHEMICAL PRODUCT AND COMPANY IDENTIFICATION PRODUCT NAME p-Nitroaniline STATEMENT OF HAZARDOUS NATURE CONSIDERED A HAZARDOUS SUBSTANCE ACCORDING TO OSHA 29 CFR 1910.1200. NFPA 1 FLAMMABILITY 3 HEALTH HAZARD 2 INSTABILITY SUPPLIER Company: Santa Cruz Biotechnology‚ Inc. Address: 2145 Delaware Ave Santa Cruz‚ CA 95060 Telephone: 800.457.3801 or 831.457.3800 Emergency Tel:
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Task A – Individual presentation Given the situation‚ you now have: · 2 minutes to prepare your responses · 2 minutes to present Tips: · Study the scenario or topic given carefully · Double check which candidate you are (A‚ B‚ C‚ D) to make sure you don’t prepare another candidate’s speech · Make sure you don’t run out of topic · Prepare 2 to 3 points to present on · You MUST agree with the point that is given to you (you can disagree or favor another point in Task B) · Make full use of
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LAB REPORT FOR EXPERIMENT #2: PURIFICATION OF ACETANILIDE BY RECRYSTALLIZATION Your name TA’s name Your Partner’s name Lab Section OBSERVATIONS: A. SELECTING A RECRYSTALLIZATION SOLVENT | |Solubility Test (cold) |Solubility Test (hot) | |Water |insoluble |soluble | |pet ether |insoluble
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Joscely Garris Professor Vinh Hoang CHEM 1151L – 254 25 October 2013 Preparation of Viscous Solution This report discusses an experiment to study the relationship of solute/solvent and the calculations involved to measure the concentration of the solution. The first experiment to take place is the preparation of a salad dressing using xanthan gum solution‚ water and oil. Commonly used as a food thickening agent‚ Xanthan gum is a large molecule composed of several saccharides linked together
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Aiza C. DATE: March 21‚ 2011 COURSE: BS Chemistry II APPROVED: ___________ PREPARATION OF AZO DYES ABSTRACT In this experiment‚ the azo dyes p-nitrobenzene azoresorcinol and methyl orange were prepared by the azo coupling reaction. The p-nitrobenzene azoresorcinol dye was prepared from p-nitroaniline and resorcinol. The diazonium salt formed was from the reaction of the cold solution of dissolved p-nitroaniline in hydrochloric acid and water with the solution of sodium nitrite. Azo
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group. The electrophilic aromatic substitution reaction nitration is used to nitrate methyl benzoate and acetanilide with a nitronium ion. Crystallization was used to purify the product. The melting point was used to determine its purity and the regiochemistry of the products. The methyl benzoate reaction product‚ methyl nitrobenzoate‚ was determined to be meta-substituted and the acetanilide reaction product‚ nitroacetanilide‚ was determined to be para-substituted. INTRODUCTION: An electrophilic
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PREPARATION OF TIN TETRAIODIDE 09/06/2012 Introduction The objective of this project was to prepare tin tetraiodide through the following reaction: Sn+2I2∆SnI4 and to measure the melting point of tin tetraiodide. Tin tetraiodide was recrystallized after the synthesis. The percent yield and the theoretical yield of tin tetraiodide were calculated. Recrystallization is to further improve the purity of tin tetraiodide. The solvent is carefully chosen to be toluene in order to maximize the recovery
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