04 June 2013 Timpanogos Cave National Monument The Timpanogos Cave is one of the National Monuments of United States. The first person who was in there was Martin Hansen in 1887 but in those years this cave did not have the same name as today its first name was Hansen Cave. A cave is a place defined as “any natural cavity large enough to allow human entry” it means that when people is inside there they get strict instructions to protect the cave and to preserve it for the future‚ the people
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CaCO3 in eggshell 1 Candidate Name: Kamalia‚ Ujjwal Candidate Number: 001350-035 Teacher’s Instruction: Carry out an experiment to determine the %of CaCO3 in egg shell. Research Question: What percentage by mass of an egg shell is Calcium Carbonate ? Variables: 1. 2. 3. Principle used: The principle of back titration is used to determine the percentage by mass of an egg shell. Excess of in is added to a known mass of powdered egg shell. The solution formed is diluted
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neutralizes the acid. In this experiment the amount of acid neutralised by one tablet is found. This may be considered a direct measurement of the effectiveness of the tablet. Requirements for the experiment:-[pic] • Indigestion Tablets Calcium Carbonate (CaCO3) • Gas Jar • Clamp Stand • Hydrochloric Acid (HCL) solutions labelled 20‚ 30‚ 40‚ 50 60gdm-3 ( these can be 0.50‚ 0.75‚ 1.00‚ 1.25‚1.50 mol dm-3) • Trough or container • Measuring cylinder • Timer.
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The aim of the present study is to use detail diagnostic characters and instrumental validation for authentication of a traditionally important herbal drug known as “Vidari” in local Indian market. Vidari drug has four different botanical entities namely Pueraria tuberose DC (P.t) (family: Leguminosae)‚ Ipomoea mauritiana Jacq (I. m) (family: Convolvulaceae)‚ Adenia hondala de Wide (A. h) (family: Passifloraceae) and Cycas circinalis (C. c) Linn (family: Cycadaceae). In this study morphological
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DETERMINATION OF THE SOLUBILITY PRODUCT CONSTANT OF CALCIUM HYDROXIDE ABSTRACT This experiment aimed to determine the solubility product constant (Ksp) of Ca(OH)2 as well as to evaluate the effects of common and non-common ions on its solubility. Ca(OH)2 solids were dissolved in eight various media: distilled water‚ 1.0 M KCl‚ 0.5 M KCl‚ 0.1 M KCl‚ 0.05 M KCl‚ 0.005 M KCl‚ 0.001 M KCl‚ and 0.1 M Ca(NO3)2. The concentration of dissociated OH- concentrations was determined by means of titrimetric
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This essay will aim to discuss Calcium 47. calcium 47 is to explore bone metabolism problems or to diagnose calcium disorders. Another way it can be used is in the biomedical research of animals to study the cellular body function and the formation of bones in mammals. Calcium 47 is one of the most important segment on earth. Calcium 47 was discovered by Sir Humphry Davy in 1808.Sir Humphry Davy is a Cornish chemist and inventor also best known in these day’s for isolating a series of substances
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Experiment 10: Solubility Product for Calcium Hydroxide GOAL AND OVERVIEW A saturated solution of Ca(OH)2 will be made by reacting calcium metal with water‚ then filtering off the solids: Ca(s) + H2O → Ca(OH)2(s) Ca2+(aq) + 2OH-(aq) The concentration of dissolved hydroxide will be determined by acid-base titration with standardized HCl solution. The Ksp for Ca(OH)2 will be calculated from the experimentally determined saturation concentration of hydroxide. Objectives of the data analysis understand
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Determination of the Solubility Product Constant of Calcium Hydroxide Introduction The equilibrium constant for the solubility equilibrium between an ionic solid and its ions is called solubility constant [1] ‚ Ksp of the solute. For example‚ the solubility product is defined by MxAy(s) ⇋xM(aq)y++ yA(aq)x- (1) Where M is the metal cation‚ A is the anion‚ x and y are the corresponding charges of the ions. The equilibrium expression is Ksp=[MY+]x[AX-]Y (2)
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Title: Measuring the loss in mass of Marble chips and Hydrochloric acid Aim: We will measure the loss in mass of the marble chips (CaCO 3 ) as it reacts with Hydrochloric acid (HCl). This one method of measuring the rate of reaction. We will use a balance to measure this mass loss as the reactants are used up to form product. Safety: * As Hydrochloric acid is corrosive wear a lab coat‚ gloves and safety goggles. * Take care when using the glassware not to cut yourself. * When
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Rocks are classified in order to communicate information about them. All classifications of limestones are arbitrary and they frequently overlap or do not fit ones particular needs. Since binocular microscopes or hand lenses are the tools that are commonly available to the explorationist‚ a practical classification should be based on descriptions using them. When these instruments are used‚ it is usually possible to identify the individual grains forming the rock. Thus most classifications require
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