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Graduated Cylinder Decimal Places
849 wordsClosing the ports changed the color of the flame. Depending on the color of the flame is the combustion. When the flame was orange is had incomplete combustion, when the ports were closed and the flame turned blue, it had complete combustion which is wanted. Turning the needle valve at the bottom of the burner adjusted its height. A lower flame was needed more because it was more controlled and easier to work with, and using the needle valve accomplished this. When burning the evaporation dish, ...
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Graduated Cylinder Sodium Chloride
1,507 wordsObjective: To practice the various techniques of measuring masses using the lab balance. Then to gain the experience in the techniques of handling lab equipment. 1. Check your balance to make sure that the pointer is calibrated or zeroed. If necessary, consult your teacher for an adjustment. 2. Place a penny on the balance pan. Move the riders until the pointer is balanced. Record the mass of the penny. 3. Repeat step two for objects listed below. -Measure and record the mass of a watch glass. -...
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Evaporating Dish Filter Paper
870 wordsChemistry Lab Physical Separation Lab The purpose of this lab was to try different methods to physically separate various materials. The variables for this lab were the evaporation of the water and / or the loss of sand or salt. My hypothesis for this lab was that the sand could be filtered out of the water and AUTHOR gouverneur Page PAGE 1 DATE 10 / 12 / 00 Ring stand - used to hold the wire gauze and the evaporating dish Ring - used to hold the wire gauze in place on the ring stand Wire gauze ...
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Evaporating Dish Test Tube
822 wordsLab: To Successfully Separate The Substances In Lab: To Successfully Separate The Substances In The sludge And To Identify Their Characteristic Properties I. Title? Chapter 5 Lab Test II. Purpose? To successfully separate the substances in the sludge and to identify their characteristic properties. III. Methods and Materials? A. safety goggles, matches, alcohol burner / burner stand, test tubes w/ rubber stoppers, thermometer, pegboard, water, bucket, rubber band, calculator, sludge, rock salt, ...
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Sodium Hydroxide Petri Dish
1,559 wordsDetection of Biological Molecules Introduction: Without carbon, nitrogen, hydrogen, sulfur, oxygen and phosphorus, life wouldnt exist. These are the most abundant elements in living organisms. These elements are held together by covalent bonds, ionic bonds, hydrogen bonds, and disulfide bonds. Covalent bonds are especially strong, thus, are present in monomers, the building blocks of life. These monomers combine to make polymers, which is a long chain of monomers strung together. Biological mole...
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Herbal Medicines Petri Dishes
1,835 wordsDo natural medicines work as well as over the counter medicines? This question has been argued about for quite a while. In my experiment, I will compare natural medicine? s effectiveness on Escherichia coli to over the counter drugs, to finally decide if herbal remedies are better than E. coli Escherichia coli (E. coli) is a common bacteria in your stomach and intestines. E. coli is a gram negative rod bacteria (Fundamentals of Microbiology). E. coli bacteria make up 0. 1 % of the total bacteria...
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Frequently Asked Questions Organic Chemistry
2,291 wordsInstruction Manual The purification process: Recrystallization 038; Filtration Jason Williams 09 - 13 - 00 NATS 4310 Table of Contents Preface Chapter 1 Equipment involved and preparation Glassware and accessories Proper sterilization of equipment Safety precautions Chapter 2 Setup procedure before purification Equipment setup Choosing of solvent Chapter 3 Gathering of an unknown compound and the first step: filtration Collection Filtration Repeat Filtration and Cleaning Collection and measur...
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