Place 5 ml of catalase at 100 units/ml in each 4 test tubes. Place 1 test tube in each of the water baths 3. Place 40 ml 1% H2O2 in each 4 vials. Measure and record the depth of the H2O2.Place 1 vial in the 0°C bath and leave 3 at room temperature. This is necessary because heat will destroy the hydrogen peroxide. 4. Allow the catalase and substrate to incubate at each temperature for about 5 minutes‚ then test the reaction time at each temperature by dipping a filter into enzyme at the temperature‚ draining it‚ and then dropping it into substrate at the same temp
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Part I: Properties of Hydrates 1.Place about 0.1 g of the following compounds in each one test tube: CuSO45 H2O‚ CoCl26 H2O‚ NiCl26 H2O‚ and KAl(SO4)212 H2O. 2. Heat each test tube gently over a Bunsen burner flame and record your observations in your notebook. 3. After the sample has cooled‚ add a few drops of deionized water. What happens and what can be concluded? Part II: Formula of a Hydrate You and your
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Shell Shock: The Failure of Corporate Ethics Video Question #1 1. Provide a synopsis of what the video was about The videos are about how oil conglomerate Shell stunned investors by announcing a 20 percent reduction in its proven reserves‚ pensions and portfolios. 2. How does this relate to the material in Section 1 of your textbook It relates to the material in section 1 because the videos talk about different types of global economics systems‚ and how to control the factors of production
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The different methods of measuring acids and bases in a solution By Starsky Intro to Biology September 26‚ 2011 Lab Partners: Kristen‚ Tania and Betty Introduction When using different methods to measure pH levels there are some tools that can be useful. Some more than others but by putting into action the different methods it may determine which tools will work best and give the best
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The objective of this lab was to recreate the color profile of a given solution. In this case‚ the solution was Powerade. The final solution should match the absorbance values at the peak wavelengths (420nm and 628nm) in Powerade. This lab was done using deionized water‚ FD&C Blue #1‚ FD&C Yellow #5‚ FD&C Red #40‚ and a spectrometer. To obtain the correct color profile‚ FD&C Blue #1 and FD&C Yellow #5 were utilized in the sample solutions. The experiment was conducted over two days; the first day
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Carotenoid Pigments from Spinach Purpose The purpose of this experiment was to isolate ß-carotene‚ chlorophyll-A‚ and chlorophyll-B from spinach using column chromatography. Spinach was dehydrated using ethanol‚ and the pigments were extracted with dichloromethane. The spinach extracts were dried using CaCl2. Then‚ the solid pigments were run through a column using a non-polar solvent‚ hexane. The polar absorbent material in the column separated the different pigments by allowing the least polar molecules
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Unknown Lab Report Dr. Nathan Cahoone Microbiology 204 December 9‚ 2010 Introduction There are many reasons for knowing the identity of microorganisms. The study and test was done by applying all of the methods that have been learned so far in the microbiology laboratory class for the identification of an unknown bacterium which I was using unknown #25. Results Unknown #25 had the following morphology on a streak plate: medium sized butyrous cream colored colony. Gram-staining was utilized
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Photosynthesis Lab Report Purpose: To research the effect of different wavelengths (colors) of light on plant growth during photosynthesis. Background Information: Photosynthesis is the process by which sunlight is captured by chloroplasts within plant cells and turned into energy. This energy is used to help the plant grow roots‚ leaves‚ flowers and fruit. Energy is required by living things
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Chemical Report The chemical I will be writing this report on is oxygen. The name oxygen comes from the Greek word “oxygens‚” which means “acid producer”. Dictionary.com defines oxygen as “a colorless‚ odorless‚ gaseous element constituting about one-fifth of the volume of the atmosphere and present in a combined state in nature.” Oxygen has many uses today. First‚ oxygen is used by people‚ plants‚ and animals in the respiration process. Tanks of oxygen are used in the healthcare field to treat
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H2SO3 + H20 H2SO4 + 2H + 2I 5.) I2 + starch starch I2 (blue-black color) Mathematically‚ we can use the Molarity formula to solve for the molarity of each solute (KI03 and NAHSO3) in order to later solve for the second concentrations of each using the M1V1=M2V2 formula. A graph will then be created‚
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