equilibrium constant for the reaction between iron (III) and thiocyanate ions. The second objective of this experiment was to use the spectrophotometer to measure the absorbance of light by [FeSCN2+] at various concentrations and then to plot its corresponding calibration curve to mathematically determine the concentration of [FeSCN2+] at equilibrium. The final objective of this experiment was to observe Le Chatelier’s Principle when stress was applied to the reaction between iron (III) and thiocyanate
Words: 4727 - Pages: 19
other topics interesting as well but I have had personal experience with ADD/ADHD and think it would be beneficial for myself to learn more on this topic. When I was younger I was diagnosed with ADD. I was put on a daily dose of Adderall. I had reactions to this medication that I considered very bad, though could have been a lot worse. The side effect that most concerned me was that my heart rate had sped up significantly and I was constantly scared that something would seriously happen to me.
Words: 552 - Pages: 3
3) To determine the H of ammonium chloride solid to ammonia gas and hydrochloric acid gas by using Hess’s law. Introduction: A reaction that release heat to surrounding is known as exothermic reaction. It is usually observed as temperature increases in solvent, container and other immediate surroundings. The expression of heat released from the reaction is: qreaction = qsolution + qcalorimeter ……..(1) The qcalorimeter is nearly zero because the calorimeter in this experiment
Words: 2189 - Pages: 9
POINT LISAS CAMPUS Esperanza Road, Brechin Castle, Couva www.utt.edu.tt LAB 1 Decomposition reaction Aim: Determination of the number of moles of water molecules of crystallization present in hydrated Magnesium Sulphate (MgSO4.xH2O) Apparatus: Mass balance, test tube, test tube holder, heat-proof mat and bunsen burner. Reagents: Hydrated sodium carbonate. Theory: Chemical decomposition, analysis or breakdown is the separation of a chemical compound into elements
Words: 2572 - Pages: 11
“Chemistry is a science that deals with the composition, structure, and properties of substances and with the transformations that they undergo” (Merriam-Webster. 2011). Thus saying, Chemistry is a major influence on our lives on a daily basis. You find it by the air that you breathe in, the food that you eat, and every object that you can see or touch is a fundamental of Chemistry. Throughout this paper, I will describe why chemistry is important, what is beneficial, and what I found interesting
Words: 1320 - Pages: 6
to Copper (II) Oxide to Copper (II) Sulfate and back to Copper metal. Also, to find out what reactions were involved in each step. Materials: “See Page 138 in the textbook”. Procedure: “See Page 138-139 in the textbook”. Observations: Reaction A: had a reaction of Incomplete Combustion. When you put the Copper (penny) into Nitric Acid a red gas was formed. Reaction B: had a reaction of Double Displacement. When the Copper Nitrate was mixed with Sodium hydroxide and the water
Words: 463 - Pages: 2
rate constant for a reaction of oxalic acid with permanganate were determined. Every chemical reaction ranges from hours to femtoseconds to occur. The rate of a chemical reaction can be determined by assessing the change in either the reactant or product in a given time or point (Connors, 1990). It is important to take account of the stoichiometric ratios of each component, regardless as to which compound is chosen to determine the rate. The study of the rates of chemical reactions is called Chemical
Words: 1537 - Pages: 7
of Manila) Intramuros, Manila College of Human Development Department of Psychology Experiment #1 Simple Reaction time Submitted by: Antonio, Edgardo Jr. Q. Submitted to: Prof. Mary Easter Claire P. Torres November 17, 2014 I. Abstract This experiment looks at the simple reaction time of an individual. The experiment is used to measure a person’s reaction time during two situations (when the person is preoccupied or focused on a thing). The experiment was made out of an
Words: 1678 - Pages: 7
http://www.heatermeals.co.uk/ | | Lamb Casserole (300 grams) | | Typlical Values Per 300g pack | Carbohydrates: | 17.1 of which sugars 9.0 | Energy: | Kcals 337 | Energy: | Kj 1405 | Equivalent AS Salt: | 1.467 | Fat: | 22.4 (Saturated Fat 3.2) | Fibre: | 3.2 | Protein: | 15.3 | Sodium: | 0.592 | | Item Description: Tender Lamb Pieces with Potatoes in a delicious Gravy Casserole Self Heating HOT meals in only 10 minutes No Fridge needed Long shelf Life of 5 years+
Words: 1299 - Pages: 6
Observations of Chemical Change and Physical Change Emily Fromme July 7, 2015 Purpose: To perform a variety of chemical reactions and make scientific observations to describe the chemical change. Equipment: Pie pan, dish soap, distilled water, matches or lighter, pair of sunglasses, paper towel, scissors, sheet of black paper, sheet of white paper, source of tap water, sunlight (needed for 30 minutes); burner fuel, 2 pairs of gloves, pipet, empty short-stem pipet, goggles, spatula (metal)
Words: 1219 - Pages: 5
