"Molar hydrochloric acid" Essays and Research Papers

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    Investigatory Project

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    Presence of Insecticides & Pesticides in Fruits & Vegetables SCHOOL : K .V N T P C CHEMISTRY PROJECT REPORT STUDY THE PRESENCE OF INSECTICIDES AND PESTICIDES IB FRUITS AND VEGETABLES Name : Class : Reg. No : Examiner Teacher-in charge. CERTIFICATE This is to certify that the project was done by …………………………… Reg. No ……………….. Is in partial fulfillment of Chemistry Practical Examinations

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    Equilibrium Lab

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    Julie Nguyen Equilibrium Lab 4-28-14 I. Purpose To study the affect of temperature & concentration changes on systems in equilibrium II. Safety Wear apron Wear goggles Do not spill chemicals Clean up after use Wash hands Chemicals are TOXIC (by Britney Spears) III. Procedure A. Iron-thiocyanate equilibrium Pipet .3mL of 1 M iron (III) nitrate and .3 mL of 1 M ammonium thiocyanate. into clean 250 mL beaker. Add 75 mL of DS water. Mix well. Divide the solution into equal

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    Labpaq Exp 6

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    properties of pure chemical substances by subjecting them to various environmental extremes. Procedure: Filled each test tube with substances provided and subjected them to various conditions. These conditions included‚ heat‚ cold water‚ hot water‚ acid and basic additions and tested on litmus paper. The reactions were observed and documented at each step. Data tables: Substance name Color Odor Effect of heat Cold H2O Hot H2O Litmus Test Dilute HCl Dilute NaOH Mg Small silver‚ metallic

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    Penny Lab Report

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    Composition of a Post-1983 Penny Lab Report Background: Through the use of percent composition one can easily find out how much of a certain element is in a compound or an item such as a post-1983 penny. The experiment will be using HCl a strong acid to dissolve all the zinc inside the outer copper shell. The reaction follows as such; Zn+2HCLZnCl2+H2‚ but there will be no reaction with copper. The portion that will be measured is the mass of copper left after all of the Zn goes through the reaction

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    C Testosteroni Case Study

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    The samples 131 were filtrated by using a filter membrane (0.45μm‚ EMD Millipore) before analysis and all samples were 132 analyzed twice. 133 134 At the end of Stage 4‚ 1 liter of the effluent was collected and extracted by methylene dichloride into acid‚ 135 base and neutral fractions‚ and was compared with those extracted from the same volume of raw 6 136 wastewater. The extract was enriched to 1 ml with a termovap sample concentrator (SC-2800D‚ ChromTech) 137 and 2 μl of the concentrated extract

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    Should fluorine be added to water? Introduction: Fluoride is a natural mineral and a chemical‚ which is a compound of fluorine that is the most commonly used in water sources. However not only for that‚ it also has a various number of other uses in example: making molten metals flow‚ and burning materials etc. as it is an extremely reactive and highly toxic element‚ so when it comes to adding fluoride to public water‚ that’s when mankind is faced with some extremely

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    Introduction 1.1 Background Information Acids are separated into different categories. These categories are strong acids and weak acids. Hydrochloric and Sulphuric acid are strong acids‚ and Phosphoric acid is a weak acid. When an acid is placed into water‚ it ionises (Tinnesand‚ n.d.). Ionisation occurs when the acid splits up into its two base components. So when Hydrochloric acid is placed into water‚ it splits into a hydrogen ion and a chlorine ion. The amount that an acid ionises depends on its strength

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    chemical and physical changes. II. Safety- To work with the chemicals used in the lab‚ it is required to wear safety goggles to protect your eyes from the fumes when working with the chemicals. It is also required to be cautious when working with the acids used in this lab because they can cause burning and irritation of the skin. Also‚ be cautious as to not inhale the chemicals. Because the glassware is glass‚ they may break and as such must be handled gently. All glassware should be inspected for cracks

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    CHEMISTRY

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    Keghan Chapter 8 MULTIPLE CHOICE QUESTIONS Topic: Structure Elucidation 1. An alkene adds hydrogen in the presence of a catalyst to give 3‚4-dimethylhexane. Ozonolysis of the alkene followed by treatment with zinc and acetic acid gives a single organic product. The structure of the alkene is: CH3 A) CH3CH=C-CHCH2CH3 (cis or trans) CH3 CH3 B) CH3CH2C=CCH3 (cis or trans) CH2CH3 C) CH3 CH2=CCH2CHCH2CH3 CH3 CH2 D) CH3CH2CCHCH2CH3 CH3 CH3 E) CH3CH2CHCHCH=CH2

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    Chemistry Mini Project 3

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    above experiment in order to see a visible color change in the solution? At what pH would the solution have been neutral? Question #4 If you had walked into the lab‚ only to discover that you only had 0.1 M sulfuric acid available to run you tests‚ how might this have affected your calculations? Why? Question #5 Balance the following reaction. Al(OH)3 + HCl  AlCl3 + H2O Question #6 FDA major findings

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