converting fallen leaves into natural homemade mulch is both more environmentally friendly and less costly. Papaya leaves are an especially good choice due to their large size and potential insect-repellent abilities. Collection The average papaya leaf stays on the tree for four to six months‚ then turns yellow and falls off. Unlike many temperate climate trees‚ papayas do not lose their leaves in the cool season. Instead‚ they shed them throughout the year. You may need to collect the leaves and place
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Isolation of Caffeine from Coffee Date of laboratory work: 10/9/2012 5:00-7:45 Date of report written: 10/15/2012 Introduction: The purpose is to isolate caffeine from coffee by using the organic solvent dichloromethane (CH2Cl2) that is also referred to as direct contact. Calcium carbonate (CaCO3) is used to remove the tannins from the coffee. Afterwards an extraction is used to separate the organic layer (bottom) from the aqueous layer (upper). By using a rotary evaporator
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ENGLISH 227 CAREER COMPARISION FORMAL REPORT Tyrone Moore No letter of transmittal? TABLE OF CONTENTS INTRODUCTION................................................................................................3 LANDSCAPING CAREER…………………………………………………..4-6 Education/Training Employment/Compensation Work Conditions CARPENTRY…………………………………………………………………6-7 Education/Training Employment/Compensation CONCLUSIONS and RECOMMENDATIONS……………………………...8-9 REFERENCES………………………………………………………………
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Lab report for Experiment #2: Extraction Your Name: Name of TA: Lab Partner’s Name: Lab Section: Title: Experiment #2: Extraction Purpose: What is the purpose of this lab? In your OWN words! Observations: Weighed out 3.2568 grams of chemical mixture that was yellow in color. Dissolved dry chemicals in 38 ml CH2Cl2 with gentle heating. Poured the yellow solution into sep funnel. Added 10 ml CH2Cl2 to flask to rinse‚ poured solution into sep funnel. Added 15 ml 3 M
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E5 & E6 Extraction of Chlorophyll from Fresh Spinach and Investigation of the Photochemistry of Chlorophyll Chlorophyll a Chlorophyll b E5 - Extraction of Chlorophyll from Fresh Spinach E6 - Investigation of the Photochemistry of Chlorophyll The aim of this experiment is to investigate the photochemistry of chlorophyll. This experiment will be performed in two lab periods. In the first lab period you will extract chlorophyll‚ the green pigment in leaves‚ from spinach.
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Dried Guava Leaves as Organic Mulch for Tomato Plants Investigatory Project I. Background of the Study Mulching is a method in agriculture whereas it enriches and fertilizes the soil planted with crop. It is both equally safe and profitable. Leaf mulch is like fertilizer. They are decayed leaves that are one of the best soil conditioners that can be added to garden or crops. Unlike fresh fallen leaves‚ which are quite acidic and use the nitrogen in the soil when decaying‚ leaf mulch adds
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1-1 EXPERIMENT 1 ISOLATION OF CAFFEINE FROM TEA In this experiment you will isolate caffeine from tea leaves and prepare the salicylate derivative. Introduction This experiment illustrates the isolation of a naturally occurring product from plant material -- caffeine from tea leaves. The experiment will provide experience in handling relatively small amounts of material and at the same time you will be exposed to several techniques and procedures which are fundamental for survival in an organic
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Electronics to increase sales and saving money with-in the company. S-N-F Electronics TITLE Team E: Keith Henningsen Heather Mapes Tyler Nooney 14 April 2013 Memo of Transmittal for Research Report Transmittal Correspondence TITLE TO: Management of S-N-F Electronics FROM: Team E (Keith Henningsen‚ Heather Mapes‚ and Tyler Nooney.) DATE: April 14th 2013 SUBJECT: Transmittal for research on establishing a website This is a follow up to see how our first proposal sent
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Organic Chemistry Laboratory – CH 200L (2012 – 2013) 2B-Ph Group 3 Experiment 1 Simple Distillation of Vodka Ancell Julienn C. Cruz Department of Pharmacy‚ Faculty of Pharmacy University of Santo Tomas‚ Espana Street‚ Manila 1008 Date Submitted: July 5‚ 2012 Abstract Distillation is a process of converting a liquid to a vapor‚ and then‚ collecting the distillate in another container. There are four distillation methods which are fractional distillation‚ simple distillation‚ vacuum
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R X R H 2 o R X R R 3o X Ch06 Alkyl Halides Page 2 Other types: A geminal (gem) dihalide has two halogens on the same carbon. A vicinal dihalide has halogens on adjacent carbon atoms. Br Br R R R gem-dibromide Cl Cl R R R vicinal dichloride Preparation of Alkyl Halides Numerous ways to make alkyl halides. (1a) Free Radical Halogenation Usually this method
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