Concentration of Potatoes Lab #1 Purpose: To find the molarity/concentration of potato cytoplasm. Materials: As on page 1 in the lab handout. Procedure: As on page 1 in the lab handout. Data and Observations: Test Tube # | Concentration of sucrose solution (mol/L) | Initial Mass (g) | Final Mass | Percentage change in mass | 1 | 1.0 mol/L | 3.00g | 2.25g | -25.0% | 2 | 0.9 mol/L | 2.70g | 2.07g | -23.3% | 3 | 0.8 mol/L | 2.92g | 2.25g | -22.9% | 4 | 0.7 mol/L | 2.60g | 1.94g
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Procedure Access the virtual lab and complete the experiments. Part One (Flame Test): 1. Create and complete a data table for Part One of the lab. It should include the name of the element (or unknown) examined and the color of the observed flame: Barium-green Calcium-red Sodium-yellow Rubidium-purple Potassium-blue Lithium-pink 2. Identify each unknown from Part One of the lab and briefly explain why you identified each unknown as you did.: Unknown 1-yellow. I think it is Sodium because
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Unit 4- keeping children safe E1) * Health and safety at work Act 1974- The Health and Safety at Work etc. Act 1974‚ also referred to as HSWA‚ HSW Act or HASAWA‚ is the primary piece of legislation covering occupational health and safety in Great Britain. The Health and Safety Executive with local authorities (and other enforcing authorities) is responsible for enforcing the Act and a number of other Acts and Statutory Instruments relevant to the working environment. The health and safety
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of substance. We can monitor the rate at which a chemical decomposes or the rate at which a chemical substance appears. In this experiment we will be measuring the rate of decomposition of hydrogen dioxide with the following reaction: 2 H202 (aq) 4 2 H20 (l) + 02 (g) We can trap the oxygen gas created into a container thus showing the extent of the reaction and this will show the rate in which oxygen is created and how the rate will change when we use different initial concentrations. We do use
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THE 4 P’s OF MARKETING 1 MARKETING THE SONY PLAYSTATION 3 Garret England AIU THE 4 P’s OF MARKETING 2 ABSTRACT In this report Garret will be going over the “Four P’s” of marketing the Sony Playstation 3. He will tell why this product interests him and how important the price and place of purchase are of marketing this product. He will also be going over how the product would be promoted and how to attract customers
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Investigation and Preparation of Esterification Lab Introduction Esters are classified as organic compounds commonly derived from carboxylic acids. They are compounded from the reaction of a carboxylic acid with an alcohol in the presence of a strong acid to be used as a catalyst. The formula that represents an ester is R-COO-R where both Rs’ are alkyl groups‚ one which is bonded to an oxygen‚ and the other to a carbon which is double bonded to 1 oxygen and single bonded to the other. Esters
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you find out which port Windows Firewall opened up on NYC-CLb? 70-680 Configuring Windows 7 Lab Manual 18. Take a screen shot of the Add or Remove Snap-ins dialog box‚ showing the two Event Viewer instances you added‚ by pressing Alt+Prt Scr‚ and then paste the resulting image into the Lab14_worksheet file in the page provided by pressing Ctrl+V. 70-680 Configuring Windows 7 Lab Manual Exercise 14.2 Configuring Remote Desktop Access Overview Before you can test the
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Michael Castelli Keegan Bauman Potato Lab Dr. Peano Block 1 Introduction: Potatoes are just your average food; they have been around for as long as the human race can remember. In this lab we will make them be a prime example of osmosis‚ which is a transport mechanism. In this lab the problem being tested was what environment affects the mass of the potatoes the most. The independent variable is the environments used salt‚ water and iodine solution. The dependent variable is the mass of
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The purpose of this lab was to determine the concentration of NaCl or sodium chloride that is isotonic to elodea cells. First off‚ what is osmosis? Osmosis is this huge net of molecules moving through semi-permeable membrane to high concentration to direction where everything becomes balanced. This brings us to what osmolality is. Osmolality is related to osmosis and we know that osmosis has something to do with water so that being said‚ osmolality is number of osmoles of solute per liter in solution
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ISC 1005C LAB WORKSHEET Interpreting the Weather Map OBJECTIVES: Upon completion of this lab‚ the student should be able to: ✓ Identify pressure systems on weather maps ✓ Develop wind directions/circulation from a pressure pattern on a weather map ✓ Identify frontal systems on weather maps ✓ Correlate precipitation and clouds phenomena to pressure patterns and fronts. INTRODUCTION: The History behind Weather Maps Creating a daily weather map was not possible
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