Experiment 5 The Quantitative Determination of an Acid in Carbonated Beverages Thomas Canfield Kelly Caddell Chemistry 144B T.A. Brock Marvin 15 October 2012 Methods: Two sodas containing citric acid were investigated in this experiment. Each soda was titrated using one of the two experimental methods. These methods are the traditional titration and the modern titration. Carbonic acid was already removed from the soda by boiling it. Both of the two different titration methods
Premium Titration Sodium hydroxide PH
Experiment V02 An analysis of aspirin tablets Procedure a. Weigh accurately a definite number of aspirin tablets (two or three tablets weighing no more than 1.5 g) into a 250 cm3 conical flask. Initiate the hydrolysis of the aspirin by adding 25 cm3 of 1.0 M sodium hydroxide by pipette‚ diluting with approximately the same volume of distilled water. Warm the flask over a tripod and gauze for ten minutes to complete the hydrolysis. b. Cool the reaction mixture and transfer with washings to
Premium Sodium hydroxide PH indicator Titration
BACKGROUND: Esterification is a reaction that combines an alcohol with an organic acid‚ with a water molecule is being taken out‚ and an ester is formed. A concentrated acid catalyst speeds up the esterification. In this experiment set up‚ sulphamic acid was used‚ as it is a solid acid and be added dry‚ without any water‚ which is a reactant in this experiment equilibrium. Esterification is a slow and reversible reaction. The equation for the reaction between an acid RCOOH and an alcohol RẬᶦ
Premium Sodium hydroxide Acetic acid Ethanol
Determination of the Enthalpy for Decomposition of Hydrogen Peroxide Objective: To construct a coffee cup calorimeter‚ measure its calorimeter constant‚ and determine the enthalpy of decomposition and formation of hydrogen peroxide. Background: This experiment is a classic thermodynamics lab. In it‚ we attempt to measure the enthalpy (H) of a chemical reaction. The main obstacle is that this is a quantity that cannot be measured directly. It instead is observed as heat from one substance is transferred
Free Thermodynamics Energy Hydrogen peroxide
For instance‚ one who comes from hardship certainly can work through and excel in a way some call unbelievable due to grit. A passionate individual who stays committed to a long term goal will not have things handed to them by chance‚ but will work hard to achieve challenging goals. By being steadfast‚ one’s tenacity is admirable especially when becoming triumphant against all odds. As Angela Duckworth‚ professor of psychology‚ states in her best seller Grit‚ “The highly accomplished are gratified
Premium Malcolm Gladwell Success
Henri Murphy Mr. Dietrich English 101 29 Aug 2014 Determination I have been in school for twelve years and seen many friends drop out. I’ve never understood how they could make it so far and just give up. But the only thing that seems to make any since is a lack of determination. It is very good to have vivid image of the things you want in life. A lion doesn’t hunt its prey with its eyes closed so don’t blindly chase after a dream or hope to accomplish something without putting any effort
Premium Decision making Personal life Psychology
Tom Tribal Economic Development Midterm March 1‚ 2010 1. Define what is tribal “self-determination”? Discuss how “self-determination” has influenced economic growth in the modern tribal economy. Tribal self-determination was a way to better life for American Indians. Three main factors were put into place to help American Indians with the self-determination act. The first one is tribal self rule. A second factor would have to be cultural survival. Finally a third factor
Premium Native Americans in the United States United States Culture
Determination of a Rate Law Megan Gilleland 10.11.2012 Dr. Charles J. Horn Abstract: This two part experiment is designed to determine the rate law of the following reaction‚ 2I-(aq) + H2O2(aq) + 2H+I2(aq) + 2H2O(L)‚ and to then determine if a change in temperature has an effect on that rate of this reaction. It was found that the reaction rate=k[I-]^1[H2O2+]^1‚ and the experimental activation energy is 60.62 KJ/mol. Introduction The rate of a chemical reaction often
Premium Chemical reaction Reaction rate Temperature
Enhanced spectrofluorimetric determination of Mebendazole‚ a benzimidazole anthelmintic drug‚ through complex formation with Lanthanum (III)‚ in pharmaceutical preparations and spiked human plasma Abstract The article concerned with the development of simple‚ sensitive‚ rapid and specific spectrofluorimetric procedure for determination of mebendazole. The cited drug was reacted with lanthanum (III) ions to produce highly fluorescent stable complex measured at 340 nm after excitation at 295 nm. Different
Premium Chemistry Solvent Acetic acid
Calculating the Enthalpy Change of Reaction for the Displacement Reaction between Zinc and Aqueous Copper Sulphate Data Collection and Processing Observations: * Drops of water left on the inside of the measuring cylinder * Hole in the lid‚ possible escape route for gas or splash-back * The polystyrene cup felt warm during the reaction By extrapolating the graph we can estimate what the rise in temperature would have been if the reaction had taken place instantaneously. I can
Premium Thermodynamics Measurement Energy