gravity filter and the Hirsch funnel‚ as it was difficult to obtain the entire product from the filter paper and the sides of the funnel. As the experiment follows a semi microscale technique even a small amount of lost product yields a great loss in the yield 4. These sources of error could be minimized by doing a larger reflux in order to increase the yield. However‚ as the purpose was to simply synthesis SnI4 in order to identify the stable oxidation states (the melting point range requires very little
Premium Oxide Electrochemistry Purple
Rebecca Boreham 7/1/14 Chem 2423 Experiment #5 Synthesis of Aspirin Elizabeth Ajasa Kaylee Seymour Lauren Hatfield Suveda Perikala Introduction/ Purpose Aspirin is the most commonly used drug in the United States. Forty million pounds are produced each year. The chemical name for aspirin is Acetylsalicylic acid. Aspirin is a pain reliever and a fever reducer. Aspirin originated from the bark of a White Willow Tree. Chewing the bark however is extremely acidicand irritates the mucous membranes
Premium Aspirin Salicylic acid Acetic acid
LITERATURE REVIEW The entire purpose of this paper is to find out the answer to the question: How does technology affect our daily lives?” Many different sources said many different things‚ however they somehow all connected at one point or another. “Body and Soul: Beware of Digital Gluttony‚” by Kate Wicker‚ suggests that technology is now apart of us and our lives and there isn’t much we can do to change it. “Technology is a real part of our lives‚ we are living in an “ICulture” whether we like
Premium Mobile phone Technology Addiction
A research study entitled‚ Exploratory Investigation on the Hypoglycemic Effect of Abelmoschus Esculentus in Miceconducted was conducted by John Ray T. Perez et al (2013). Their paper made an exploratory investigation on the hypoglycemic effect of a common food item known as ―okra‖ or Abemoschus esculentus (EA). Six (6) mice were randomly selected and grouped into 2 groups and were given extracts from the fruit of Abelmoschus esculentus (EA)/okra which was chopped into three pieces and was soak in
Premium Diabetes mellitus Insulin Blood sugar
Thesis: Racism continues to be a prevailing negative theme (despite some radical claims of extinction ) that has evolved to be nurtured by America’s society through media‚ parents and schools‚ and technology. On a trip to the north in 1947 Mary Sive learned the meaning of segregation and racism when she realized that the point of it all was to loom over every aspect of life and make everything more difficult for a colored person no matter how trivially small the matter was. A little over fifty years
Premium Race Racism Race
Medicine Analysis – Synthesising Aspirin results After recrystallisation differences between the crude and purified aspirin were noted. The impure (crude) aspirin was powered and fluffy with small clumps and was slightly yellow in colour whereas the pure aspirin has a less fluffy crystalline powder and was whiter. This showed distinct differences in the two substances but similarities were also apparent showing aspirin‚ in some level‚ was created. Before recrystallisation the crude aspirin could
Free Aspirin Carboxylic acid Purity
One of the most known theories is the Activation Synthesis Theory. J. Allan Hobson developed this theory in the late 1970s after running an experimental study on cats focusing on rapid eye movement sleep (REM) (Domhoff‚ 2003). The Activation Synthesis Theory simply states that our cerebral cortex is trying to interpret random electrical activity we have while sleeping. Hobson argued and quoted that
Premium Sleep Sleep disorder Sleep deprivation
Journal of Management http://jom.sagepub.com/ Causes and Effects of Employee Downsizing: A Review and Synthesis Deepak K. Datta‚ James P. Guthrie‚ Dynah Basuil and Alankrita Pandey Journal of Management 2010 36: 281 DOI: 10.1177/0149206309346735 The online version of this article can be found at: http://jom.sagepub.com/content/36/1/281 Published by: http://www.sagepublications.com On behalf of: Southern Management Association Additional services and information for Journal of Management
Premium Layoff Termination of employment
Experiment # 3 Acetylsalicylic Acid Introduction: The purpose of this experiment is to create and isolate pure acetylsalicylic acid from the substances salicylic acid and acetic anhydride. Then one will find the melting point to determine purity. Procedure: Make a hot bath. Weigh some salicylic acid and place in conical vial. Add .480mL of acetic anhydride and a drop of concentrated phosphoric acid. Drop in a magnetic spin vane and attach air condenser to vial. Partially submerge it in
Free Aspirin Carboxylic acid Acetic anhydride
Name: ______________________________________ Date: ________________________ Student Exploration: Dehydration Synthesis Vocabulary: carbohydrate‚ chemical formula‚ dehydration synthesis‚ disaccharide‚ glucose‚ hydrolysis‚ monosaccharide‚ polysaccharide‚ valence Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. If you exercise on a hot day‚ you need to worry about dehydration. In this context‚ what do you think dehydration means? When you are exercising in the heat you
Premium Oxygen Water Chemical bond