Date Performed: September 9 ,2011 SPECTROPHOTOMETRIC DETERMINATION OF THE ACID DISSOCIATION CONSTANT OF METHYL RED M.C. Caligagan ,M.N.Q. Tolentino and M.Q. Clores Institute of Chemistry, College of Science University of the Philippines, Diliman, Quezon City, Philippines Received :September 21,2011 ABSTRACT This experiment aims to determine the acid dissociation constant value of Methyl Red by means of spectrophotometry. Ten samples were spectrophotometrically analyzed under a UV-Vis
2) Density = 0.94g/mL Volume = 10.0mL Mass = m A 100% yield would not make sense because it would imply that we end up with all of the (±)-α-phenylethylamine in the end. However, this racemic mixture contains two enantiomers of α-phenylethylamine: the (+) enantiomer and the (-) enantiomer. Since we only extracted the (-) form of the enantiomer, the percent yield should only represent about 50% of the overall racemic mixture. Therefore a value of 32.8% is very close to the theoretical
Nicaragua, El Salvador and Guatemala. In the 1980s, the Reagan administration described its involvement as an effort to stem Soviet influence in the hemisphere. President Reagan determination to promote democracy in Central America was not only his policy but his priority−at least on paper. “I expressed my determination to see democracy prevail in Central America. It is already the policy of the US Government to promote democracy throughout the Western Hemisphere. The
The Determination to Obtain Vengeance Depending on the perspective of a situation, revenge can be ethical to someone, but it can also be immoral to someone else. In William Shakespeare’s Hamlet and Ridley Scott’s Gladiator, the protagonists experience grief and are both driven to seek revenge after the deaths of loved ones, which leads to their tragic downfall. Hamlet and Maximus are ambitious in avenging the murder of their family members as they obsessively want to execute Claudius and Commodus
Independent variable Sucrose concentration (M) (±0.01 g) This variable would impact the investigation as the higher the concentration of sucrose that is used in this experiment, the average percent change in mass in Solanum tuberosum core will decrease. This will occur due to the fact as the solute concentration begins to increase in the water, the solution will eventually become hypertonic, thus the percent change in mass of the Solanum tuberosum core will start to decrease as water molecules
Mary Shelley’s Frankenstein, is a novel of interpersonal struggle between inborn traits versus the self determined willingness to work for success. The author demonstrates the contrasting personalities of Victor and the Creature specifically in regard to the nature they are born with in contrast to who they made of themselves. Innate aspects hinder personal growth for the Creature although he works hard to become a self-made man, whereas nurturing miens obstruct growth for the dignified Victor despite
problems of today’s students and it is the same problem that the Grade 10 Students dealing today on choosing a strand on Senior High School. In Frederic Guay, Caroline Senecal, Lysanne Gauthier, and Claude Fernet “Predicting Career Indecision: A Self-Determination Theory of Perspective “Journal of Counseling Psychology 2003, Vol. 50, No. 2, 165–177. Career indecision defined as an inability to make a decision about the vocation one wishes to pursue. A good example will be the Grade 10 student being confused
Title : Expt.1 Determination of the enthalpy (heat) of reaction of a monobasic acid with sodium hydroxide Experiment no : 1 Experiment title : Determination of the enthalpy (heat) of reaction of a monobasic acid with sodium hydroxide Objectives: 1) To understand the enthalpy chemistry. 2) To determine the calorimeter constant. 3) To determine the enthalpy reaction of acid-base reactions. 4) To study the exothermic reaction. Apparatus and Materials : * Dewar flask
Practical Report (Determination of blood glucose levels and qualitative carbohydrate tests) Introduction: The term ‘’Carbohydrates’’ is defined as the carbon compounds which contains hydroxyl groups in large quantities (King, 2013). Carbohydrates are those organic compounds which have the empirical formula CnH2nOn, or (CH2O)n (Fromm 1997). Carbohydrates are one of the four types of organic compounds in living cells that are produces during photosynthesis and are the important source of energy in
Functional Currency Determination Case 10/10/2011 ABSTRACT In the dynamic global market, companies of all sizes, whether small, medium or transnationals interact with foreign companies and in most cases operate with currencies that are different from those that they commonly use. Foreign companies use foreign currencies for their expenditures, hedging strategies, and investing and financing activities. As a result these business activities must be reflected on the financial statements in the