ABSTRACT The average concentration of CaCO3 obtained was 212 ppm‚ with a standard deviation of 1 ppt. The results indicate that the unk B tap water can be considered as hard water. INTRODUCTION Hard water is due to metal ions (minerals) that are dissolved in the ground water. These minerals include Ca 2+‚ Mg2+‚ Fe3+‚ SO42-‚ HCO3-. When this water evaporates or boils‚ the difficult to dissolve metal salts remain as a scaly residue. Hard water inhibits the effectiveness of soap and detergents
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UNKNOWN SAMPLE #97 COMPLEXOMETRIC DETERMINATION OF WATER HARDNESS DR. BUDRUK CHM 152 LL SEAN MARKIS 4 FEBRUARY 2015 Introduction Using a Lewis base neutral molecule to donate electron pairs (ligands) to a Lewis acid metal ion center to form a single cluster (complex) ion. When the complex ions forms with a metal ion (chelation) the ligand used is called the (chelating agent). EDTA acts as a great chelating agent due to the Nitrogen and Oxygen donating an electron pair to the
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| Determination of the Critical Micelle Concentration | | | | Introduction: Purpose: The purpose of this experiment is to use the Conductometric method to determine the critical micelle concentration of SDS. Materials and Equipment: * SDS- Sigma Aldrich‚ Lot: 38H0080‚ S/N: L-439‚ * NaCl- Food grade Great Value * SDS 20% solution- Fisher Biotech‚ S/N: BP1311-200‚ Lot: 468059 * Wave generator- Pasco Scientific‚ S/N PI-9587C * Ammeter- Keithley Auto-ranging
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48667560 IOP 4862 ASSIGNMENT 795751 ASSIGNMENT 01 Rudo Rachel Maravanyika 5/28/2013 Number of words 4 851 ASSIGNED OVERALL PERCENTAGE 1OO% Table of contents Introduction 1.1 Clear purpose 1.2 Clear/Specific goals 1.3 Performance Review/ self-evaluation 1.4 Participation 1.5 Communication 1.6 Collaboration 1.7 Supportive leadership 2.1 Teams 2.2 Work groups 3.1 Cross functional Teams 3.2 Virtual teams 4.1 Team performance 4.2 Quality 0f group experience 4.3 Team Viability
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1. Introduction In any type of industry‚ Self-management skills which are sometimes referred to as personality traits are important in determining the quality of services or quality of product provided to the customers. Skill Management is beneficial to both the organization and the employees as it is a way for maximizing the time and talents in achieving the projected goals. The organization benefits from increased productivity and capability while Employees benefit from higher motivation and commitment
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Crime and Self-Defence (New Delhi‚ 1993). Ames‚ James Bar‚ “Law and Morals”‚ Harv. L. Rev.‚ Vol. 22‚ (1908)‚ p. 98. Beale‚ Joseph‚“Retreat from a murderous assault’‚ Harv. L. Rev.‚ Vol. 16‚ (1902)‚ p. 573. Lowery‚ Jack‚ “A Statutory study of self-defence and defence of others as an excuse for homicide”‚ University of Florida Law Review‚ Vol. V (1952)‚ p. 58. Mahoney‚ Richard‚ “The Presumption of Innocence-A New Era”‚ Canadian Bar Review‚ Vol. 67‚ (1988) p. 1. March‚ Jenifer‚ “Women’s self-defence
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The Self Paper Susan Lagesse University of Phoenix Social Psychology Psych/555 Carlos Diaz-Lazaro March 4‚ 2015 The Self Paper Introduction The following paper has been developed with the intentions of providing a substantial amount of information on the concept of self. This includes‚ how an individual develops a self-concept; an explanation as to the relationship between the self and emotion; and how said relationship affects an individual’s self-esteem. In closing‚ information in regards to the
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Over the years much research has been done on the topic of self-handicapping. There have been many studies done on the relationship between the effects of self-handicapping on physical performance of athletes and physical education students. How much of an effect‚ and whether it is positive or negative to physical performance was a matter of controversy however. The studies agreed that self-handicapping had an impact on physical performance but each went into deeper variables that may enhance
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been exposed to self- harm. We have come to realize self-harm as a growing issue‚ yet fail to see the signs; even though there are signs to help us‚ help others. Various people fail to realize that self-harm can reach many places in the world‚ places such as prisons‚ hospitals and schools. With statistics raising in numbers in the self-harm reports it leaves many asking questions like: Why does one self-harm? Who self-harms? How? Self-harm in incarcerations facilities? And‚ Can self-harm be re-habilitated
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This paper is about the impact of self-esteem on daily life. The more negative thoughts and feelings you have about yourself‚ the lower your self-esteem. People with low self-esteem often have little confidence in their abilities and question their self-worth. A common scenario‚ which exemplifies a lack of self-esteem‚ features college students who say‚ "It won’t do any good to study. I won’t make a good grade anyway." These students think they are doomed to failure because of poor performance
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