Background An indicator is a halochromic chemical compound that is added to a solution to determine its pH. It is a chemical detector for hydronium ions. The indicator changes colour to show the pH of the solution. Some indicates are not very precise and only tell us whether the solution is acidic or basic. When the indicator is added to the solution‚ they bind to hydrogen or hydroxide ions. The different electron configurations of the bound indicator cause the indicator ’s colour to change.
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EXPERIMENT NO. 7 Quantitative Analysis of Soda Ash by Double-Indicator Titration ABSTRACT This experiment aims to analyze the percent composition of a substance mixture by using double indicator titration. The analyte used is the soda ash which is titrated with an HCl titrant‚ standardized by 1o Na2CO3. The indicators used are phenolphthalein for basicity and methyl orange for acidity. The two volumes of the titrant are then used to calculate percent composition of soda ash analyte. Statistical
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Quantitative Analysis of Soda Ash by Double Indicator Method Results and Discussion The experiment focuses in the use of double indicator titration in quantitative analysis of soda ash sample. Titration refers to the process of measuring the volume of titrant required to reach the equivalnece point. This method of analysis‚ is based on the chemical reaction aA + bB → products (1) where a is the molecules of the unknown substances to be analyzed or the analyte. Analyte reacts with b molecules
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| | |Acid-Base Indicators: Spectroscopic Method of Determination of Ka | |Sahib Kaur | |
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16-3 Red Cabbage Juice pH Indicator Sources: Prof. George Ewing’s C100 Demonstration Notes; Prof. Carolyn Huffman’s Fall ’93 C100 lecture; B. Z. Shakhashiri‚ 1989‚ Chemical Demonstrations: A Handbook for Teachers of Chemistry‚ vol. 3‚ pp 162-166. Description and Concept: Red cabbage juice will change to a variety of colors when added to solutions of various pH. Red cabbage juice is a pH indicator. Materials: red cabbage* blender hot or boiling water filter paper (coffee filters
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Communication in the workplace is essential for success. To increase understanding of a person’s personality and their work ethics the Myer’s Briggs Personaliyt Test was developed to assess a person’s psychlogical profile and give insight on how they relate to other people . This can be a good tool to determine compatibility in the workplace and give insight on how to communicate with a person. This paper will focus on my personality type‚ whether I belive this is an accurate assessment‚ give
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The identification of acids and bases using a natural indicator Purpose: The purpose of this lab practice is to identify the pH of certain solutions and if they are acids or bases. Introduction: In chemistry‚ pH is a measure of the activity of the (solvated) hydrogen ion. p[H]‚ which measures the hydrogen ion concentration‚ is closely related to‚ and is often written as‚ pH. Depending on the pH solutions will be acids or bases. An acid is a chemical compound that dissociates in solution‚ releasing
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Myers-Briggs type indicator is a psychometric questionnaire which was designed to identify certain psychological differences according to the theories of Carl Gustav Jung. The original developers of the personality test were Katherine Cook Briggs along with her daughter Isabel Briggs Myers. These ladies developed this questionnaire to help with women entering the workforce for the very first time during World War II. The original questionnaire grew into the Myers-Briggs Type Indicator which was first
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assessments available‚ the Myers-Briggs Type Indicator is most often chosen over the others. Based on the theories of Carl Jung‚ this assessment identifies personality constructs based on four different scales. The Myers-Briggs Type Indicator is often used to determine the level of leadership ability that an individual possesses. This information can be beneficial in team building in both educational and organizational settings. Myers-Briggs Type Indicator Professionals in the field of psychology
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Running Head: Myers-Briggs Type Indicator 1 The Myers-Briggs type indicator is a psychological test that is based on the theories of Swiss Psychiatrist Carl Jung. The test divides people into 16 distinguishable personality types‚ based on high and low scores on four “scales” (Zemke‚ 1992). On the basis of their answers on the test‚ individuals are classified as extraverted or introverted‚ sensing or intuitive‚ thinking or feeling and judging or perceiving (Langton‚ Robbins and Judge‚ 2013)
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