Chemistry 12 - Lab 19A Flow Chart (Investigating Chemical Equilibrium) PART 1: Put on safety goggles and lab apron Obtain 2 (Empty‚ Clean‚ AND DRY) 250mL Erlenmeyer flasks. Add approx. 100mL of DISTILLED water and 1mL of thymol blue solution to each flask Record the colour of this solution in note book FIRST FLASK: add a single drop of 0.1M HCl. Swirl the contents of the flask and continue drop-by-drop addition until a definite colour change is observed. SECOND FLASK: will serve as
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collected in lab #1 shows the relationship of surface areand volume in the artificial cells to the diffusion rate using the phenolphthalein-NaOH agar and the HCl solution. Lab #2 was a model of diffusion and osmosis‚ in which we filled the model cells with different solutions and determined the rate of diffusion. In lab #3‚ the results demonstrated the interactions between selectively permeable membranes‚ water‚ and solutes and how they are important in cellular and organismal functions. In lab #1‚ the
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Heat of Neutralization Lab Objective: The objective of this lab was to measure‚ using a calorimeter‚ the energy changes accompanying neutralization reactions. Background: Chemical changes are always accompanied by a change in energy‚ typically as heat. If the reaction releases heat (ΔH < 0) then the reaction is exothermic. If the reaction absorbs heat (ΔH > 0) then the reaction is endothermic. The quantity of heat is measured experimentally by having the reaction take place in an insulated container called a
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for this experiment‚ so you must record your observations in the lab notebook as you do the experiment. This experiment will last several laboratory periods. A. Theory Read Sections 17.6 - 17.7 ( pp. 756-760) and Table 4.1 (p. 127) in your textbook
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Julie Nguyen Equilibrium Lab 4-28-14 I. Purpose To study the affect of temperature & concentration changes on systems in equilibrium II. Safety Wear apron Wear goggles Do not spill chemicals Clean up after use Wash hands Chemicals are TOXIC (by Britney Spears) III. Procedure A. Iron-thiocyanate equilibrium Pipet .3mL of 1 M iron (III) nitrate and .3 mL of 1 M ammonium thiocyanate. into clean 250 mL beaker. Add 75 mL of DS water. Mix well. Divide the solution into equal
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Buffer Post Lab Calculation 1. We added too much NaOH to our buffer 1 solution. The original pH was 5.32‚ with 10mL of buffer and 10mL of DI water. We added 5mL of NaOH and the pH changed to 12.12. If 5 mL changed the pH by about 7‚ then we predict that about 2 mL of NaOH would change the pH by about 2. This prediction is based on the fact that 2.5mL is half of 5mL‚ and 3.5 is half of 7‚ so adding a little less than 2.5mL would give us a difference of about 2. For the buffer 2 solution‚ the original
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MKT - RED BULL Summary Red Bull is the most popular energy drink in the world‚ selling over $4.7 billion cans annually. The company was started by an Austrian entrepreneur Dietrich Mateschitz in the 80s. Red Bull pursued an aggressive yet different marketing strategy to grow their brand globally. Red Bull met an untapped need within the beverage consumer market and the strength of their brand provided them leverage to market themselves in a non-traditional manner. The brand is very strong‚ but does
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Marketing Case Study Assignment 1 2012 Contents 1.0 Introduction2 2.0 SWOT Analysis of Red Bull2 3.0 Analysis of Red Bull’s Market Structure and Control Systems3 3.1 Market Structure3 3.1.1 The number of players in the Energy Drink Market3 3.1.2 The Degree of Product Differentiation in the Market3 3.1.3 The Ease of Entry and Exit Into And Out Of the Energy Drink Market3 3.2 Marketing Control System4 3.2.1 Intensive Research Work4 3.2.2 Internal Statistics4 3.2.3 Marketing
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dramatic‚ sexy‚ mysterious‚ sophistication or immortal? The color red can be interpreted in many ways. You see a lot of women with these vivid red lips; What message do you think they are sending? Red lipstick as we know is just a fashion trend and is commonly seen among women today. Red lipstick was not commonly worn by the everyday women years ago‚ but has transition the meanings. Red lipstick has a history from centuries ago to today; Is red lips a good or bad image for women? It is bold‚ dramatic
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RED COLOUR There are many colours in our world. Think of how bland and unexciting it would be without colour. Colours light up our surroundings‚ and inspire us to be creative. Also‚ we can learn many things from the natural colours we see and what they symbolize. Red always represents action‚ vigour‚ passion‚ and anger‚ which are all very active feelings. Where do we see red? How about…stop signs? They catch drivers’ eyes‚ as they require an immediate response to stop. To ‘raise a red flag’ means
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