STANDARDIATION OF ACID AND BASE Eunice Ivy B. Gamboa ABSTRACT Solutions of known concentration are prepared by dissolving measured masses of standard acids in distilled water. The concentrations of unknown solutions of sodium hydroxide are determined by titration. An acid solution reacts with a base solution in a "neutralization" reaction. Titrations permit the concentrations of unknown acids/bases to be determined with a high degree of accuracy. In order to analyze unknown acids/bases‚ we must have a "standard"
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The five bases of power in the book are: (1) Legitimate power‚ (2) Referent power‚ (3) Expert power‚ (4) Reward power‚ and (5) Coercive power. The group member can influence others because of being elected or appointed‚ that means this person has legitimate power. Legitimate power comes from occupying a position of responsibility. People have high legitimate power should also have a high position of responsibility. For example‚ in the small group‚ the group leader or chairman should have legitimate
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Child Development: Social and Emotional Development Child Development - Social and Emotional Development Introduction: As we grow older we change; these changes are most visible during infancy and childhood. From birth‚ babies grow larger and show noticeable development in both their social and intellectual competence. The study of age-related changes in human behaviour is referred to as developmental psychology. Child development refers to the psychological and biological changes that
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Five Bases of Power Maria Mayorga BCom230 November 28‚ 2011 Jay Johnson Five Bases of Power Power is said to be ability of one person‚ group‚ or organization to control another person‚ group‚ or organization. Power is also refer to when one individual makes another do what the other wished through fear‚ force‚ persuasion‚ or reward. For example someone may be powerful because he or she could fire or assign a task someone does not like. Other could be powerful by having the ability to
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Acids And BAses Acids And BAses 8.1 8.2 8.3 8.4 18.1 18.2 18.3 18.4 18.5 Theories of acids and bases Properties of acids and bases Strong and weak acids & bases The pH scale Calculations involving acids and bases (AHL) Buffer solutions (AHL) Salt hydrolysis (AHL) Acid-base titrations (AHL) Indicators (AHL) 8 8.1 THeORies OF Acids And BAses 8.1.1 Define acids and bases according to the Brønsted–Lowry and Lewis theories. 8.1.2 Deduce whether or not a species could act as a Brønsted–Lowry
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Further along in this episode‚ Paddy is begins to display another voice‚ making him seemingly proud of his brother‚ “He wasn’t selfish like most fellas who could dribble”. The use of the modal verb of ‘could’ in this passage makes it evident that Paddy has noticed that his brother is becoming good at something and this is a more mature display of character towards his brother. He is seen to be stepping up in the absence of his parent who are usually too busy arguing to focus on the children‚ this is the
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hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh Case- Harrah’s Entertainment Inc. Questions: 1. What are the objectives of the various Data Base marketing programs and are they working? 2. Why is it important to use the “customer worth” in the DBM efforts rather than observed level of play? 3. How does Harrah’s integrate the various elements of its marketing strategy to deliver more than the results of Data Base marketing? 4. What is the sustainability of Harrah’s actions and strategy? 5. What are the privacy and ethical
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Title: ACID BASE TITRATION. Objectives: 1. To determine the concentration of acid using titration. 2. Skills of titration techniques. Apparatus: 1. 250 volumetric flask 2. 10mL measuring cylinder 3. 25mL pipette 4. 50mL burette 5. 250mL beaker 6. 150mL conical flask 7. Retord stand 8. White tile 9. Stopwatch 10. Pipette bulb Chemicals: 1. HCl solution 2. 0.1M NaOH solution 3. H2SO4 solution 4. Distilled water 5. phenolphthalein Introduction
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Acid-Base Calculations The Ion-Product Constant for Water‚ Kw Water undergoes ionization to a small extent: H20(l) H+(aq) + OH–(aq) The equilibrium constant for the reaction is the ion-product constant for water Kw: (1) This is a key equation in acid-base chemistry. Note that the product of [H+] and [OH–] is a constant at a given temperature (Eq(1) value is for 25oC). Thus as the hydrogen ion concentration of a solution increases‚ the hydroxide ion concentration decreases
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Economic Base Description The county has a successful agricultural and manufacturing base holding a top 10 ranking in the state for a number of agricultural categories. The Capital Region International Airport is also located in the southern tier of Clinton County. A Clinton County Economic Alliance has been formed to promote the region as a great place to live and do business. The Clinton County Economic Alliance is a partnership of government and private sector organizations in Clinton County
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