Coordination Compounds are compounds that contain at least one complex ion. Complex ion is an ionic species consisting of a metal ion bounded one or more Lewis bases. Coordination complex is the product of a Lewis acid-base reaction in which neutral molecules bond to a central metal atom by coordinate covalent bonds. A coordinate covalent bond is a covalent bond in which one atom supplies both electrons. Ligands are atoms or molecules with electron pairs available‚ and they may be neutral or negatively
Premium Atom Electron Chemical bond
COLUMN AND THIN LAYER CHROMATOGRAPHY Mark Paul P. Pastrana‚ Mariah Ericka M. Patawaran‚ Princess Juneire M. Peligro‚ Francisco Q. Pua III‚ Rose Anne L. Quyo and Janille P. Ragpa Group 8 2B Medical Technology Organic Chemistry Laboratory ABSTRACT The main objectives were to separate the colored components of malunggay leaves by means of column chromatography‚ as well as to determine the purity of the components using thin layer chromatography (TLC) and measure the Rf values of the colored
Premium Thin layer chromatography Chromatography
They then examined these samples through the SEM‚ XRD‚ and TGA to learn more about the properties and differences. The SnSp (powdered) species came from the SnSg (granular) synthesis during solvent exchange and the CO2 supercritical drying process. They found that the PAN hybrid was very much more mechanically stable than pure chalcogel
Premium Chemistry Oxygen Carbon dioxide
Experiment Four: Organic Synthesis of Aspirin Abstract The purpose of this experiment is to synthesize a common organic product called acetylsalicylic acid (aspirin)‚ and to become familiar with the optimum conditions needed for successful yields. Aspirin is produced from an acid catalyzed reaction between salicylic acid with acetic anhydride. The crystalline aspirin is synthesized and purified by recrystallization‚ although there is not a hundred percent yield due to sources of error. Introduction
Free Aspirin Carboxylic acid Acetic acid
Synopsis: The main aim of the experiment is to find out the amount of calcium carbonate in toothpaste through back titration since calcium carbonate does not dissolve in water. A roughly weighed amount of calcium carbonate is mixed with hydrochloric acid and then titrated against sodium hydroxide. When the indicator turns from pink to orange‚ the volume of sodium hydroxide used is taken down. After doing some calculations‚ the average percentage of calcium carbonate in toothpaste is 19.2%. This average
Premium Sodium hydroxide Calcium carbonate Carbon dioxide
Agglutination Reaction Date performed: May 7‚ 2012 Group members present: Tan‚ Kevin Kyle Sy Ting‚ Shermae Tomimbang‚ Charisse Christine I. Introduction Agglutination is the clumping of particles. The word agglutination comes from the Latin agglutinare‚ meaning "to glue." This occurs in biology in three main examples: 1. The clumping of cells such as bacteria or red blood cells in the presence of an antibody. The antibody or other molecule binds multiple particles and joins
Free Blood Red blood cell Blood type
Introduction: The purpose of the first experiment was to practice obtaining accurate and precise results by doing combustion analysis to find the amount of carbon dioxide and water released and the amount of fuel consumed. To identify the amount of carbon dioxide‚ water and burner consumed there were three equations used to find it. Equation 1 shows how much carbon dioxide was released. Mass of carbon dioxide = m2 - m1 Equation 1 was used as an experimental procedure created to help find out
Premium Oxygen Carbon dioxide Standard deviation
REDUCTION Oxygen makes up only about 20% of the air‚ yet is the essential component for so many reactions. Without it fuels would not burn‚ iron would not rust and we would be unable to obtain energy from our food molecules through respiration. Indeed animal life on the planet did not evolve until a certain concentration of oxygen had built up in the atmosphere over 600 million years ago. The term oxidation has been in use for a long time to describe these and other reactions where oxygen is added
Premium Oxygen Hydrogen Carbon dioxide
References: http://prezi.com/oojtdpkwez7d/lab-7-synthesis-analysis-of-isopentyl-acetate/ http://www.franklincollege.edu/pwp/lmonroe/Organic%20Chem/Esterification.pdf http://bestsexo.com/videos/empflix/313657/mosaic--yume-021/ http://xhamster.com/movies/1141027/mature_hot_mom_with_young_boy.html * ------------------------------------------------- http://sex-hq.com/tube/milf/
Premium Ester Acetic acid Distillation
graph‚ it can be concluded that a lower a temperature such as‚ 0°C‚ will have a higher concentration and a higher temperature such as‚ 95°C‚ will have a lower concentration. Conclusions: The data recorded in the graph is related to my hypothesis about the relationship between concentration and temperature. It shows that when a solution of water and potato is put into different temperature
Premium Null hypothesis Temperature Celsius