# Now You See It – Copper Cycle Lab The purpose of the lab is to discover what happens when someone executes a series of procedures‚ beginning with copper metal. What is done | What is observed | 1. Started with copper‚ Cu (s). | reddish‚ brownish‚ orange-ish‚ powder-like | 2. Added nitric acid‚ HNO3 (aq). | acid turns blue and smells like chlorine. | 3. Added water‚ H2O (l). | stayed the same | 4. Added sodium hydroxide‚ NaOH (aq). | changed consistency‚ gel-like | 5. Heated the
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Some Chemical Reactions in Everyday Life Science being a subject of common interest‚ it is very intriguing to analyze visual experiments happening in day-to-day life. There are a plethora of products that you use everyday‚ which are formulated with application of chemical reaction. Say for example; toothpaste‚ soap‚ shampoo‚ cleaning agent‚ etc. are all results of chemical reactions. Following are some of the most profound chemical reactions‚ which we encounter in everyday life : Aerobic
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Effect of Temperature on Solubility of a Salt Ahmed Mohammed 17-nov-2013 Abstract In this experiment‚ you will study the effect of changing temperature on the amount of solutet will dissolve in a given amount of water. In this experiment‚ you will completely dissolve different quantities of potassium nitrate‚ KNO3‚ in the same volume of water at a high temperature. As each solution cools‚ you will monitor temperature using a computer-interfaced Temperature Probe and observe
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certain factors of a chemical reaction affect the rate of reaction. This experiment focused on how temperature affects the rate of reaction for the reaction of alka-seltzer and water. The rate of a reaction is a value calculated to figure out how fast a chemical reaction occurs. There are three factors that can be changed that will affect the rate of a chemical reaction: surface area‚ concentration‚ and temperature. Temperature specifically affects the rate of a chemical reaction‚ because when the
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was synthesis by reacting concentrated hydrochloric acid using nucleophilic substitution sn1. In the substitution reaction the Hydrogen in HCl protonated the alcohol group in t-pentyl alcohol and turned it to a good leaving group (H2O). a tertiary carbon cation was formed. a nucleophilic attach of the negative Cl- attacked the carbon cation forming t-pentyl chloride [7]. As the reaction proceeded‚ extraction and distillation techniques were used to get a pure product of t-pentyl chloride. The percent
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Calorimeter Determination of Reaction Enthalpy 9/11/2014 Introduction: A chemical reaction often indicated by a transfer of energy measured in heat. By measuring this heat transfer in a constant pressurized environment‚ the enthalpy of the reaction can be used to infer certain information about a specific reactions reactants and products. The transfer of heat from outside sources in would be described as an endothermic reaction. Contrary‚ when a reaction releases heat out to its surroundings
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Chapter 13‚ “Chemical Reactions”‚ was also of great interest to me. “A change that alters the chemical composition of a substance and hence forms one or more new substances is called a chemical change‚ or more often‚ a chemical reaction (James T. Shipman 342).” In this summary paper‚ I will discuss some of the highlights of the chapter. An awesome example of a chemical reaction is that of photosynthesis‚ found in green plants. In photosynthesis‚ plants absorb carbon dioxide gas from the air
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Department of Chemical Engineering CHME 426 –Chemical Engineering Laboratory III Title Page (Full Report) Title of the Experiment: Reaction through three CSTR in series Submitted by: Group (4) Section: Female 1. Name: Amina Ali ID: 200550284 2. Name: Duaa Tabarak ID: 200553858 3. Name: Mariam Rustom ID: 200552242 Date of experiment: 31st March‚ 2010 Date of submission: 11th April‚ 2010 Grades: Report presentation………………………………………… /15 Abstract and Objective(s)……………………………………/10
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Lab Report: Halogen Reactions Purpose: This experiment will allow for exploration into some of the properties of Group 17 elements (halogens) and their compounds. More specifically‚ the solubility properties of these halogens will be used to predict their reactions. The relative electronegativities of the halogens will be determined. Halides‚such as Cl-‚ Br-‚ and I- will be used to make these determinations. Because this lab is qualitative rather than quantitative‚ there are no calculation
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The Virtual Lab – ELISA Test Lab: Immunology 09/04/2013 Instructors: Dr. Charlie Wilson Written by: Dipen Patel I. Objective: The purpose of the lab was to learn the procedure of performing an ELISA test to determine whether a particular antibody is present in a patient’s blood sample. ELISA is an abbreviation for “Enzyme-linked Immunosorbent Assay." II. Introduction: The interaction of antigen and antibody outside the body can be used to determine if patient
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