addition of sulfuric acid- Gelatinous‚ pale yellow solution | Table 3: Salt Formation Solution: | Residue Formation: | pH level: | Aniline added with benzenesulfonyl chloride | Residue Formed | 14 | Diethylamine added with benzenesulfonyl chloride | Residue formed | 13.5 | Triethylamine added with benzenesulfonyl chloride | No Residue Formed | -------- | Table 4: Hinsberg
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The Effect of Metal Ions on Lichens Casey Stinnett ESC 1510 October 30‚ 2014 Introduction Lichens are a sybiotic association of fungus (mycobiont) and algae (Pediastrum boryanum . The fungus engulfs the algae‚ then supplies carbs‚ nitrogen‚ and vitamins while the algae photosynthesizes. This unusual relationship enables the lichen to grow in environments where neither fungus nor algae would normally be able to solely survive. They are found on every continent‚ ranging all the way from
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a Nerve Impulse • In this experiment‚ we will be investigating what stimulates action potential on the nerve being tested on the oscillator. The factors that helped determine action potential are voltage‚ single stimulus‚ Hydrochloric acid‚ sodium chloride‚ the glass rod‚ and heat. II. Activity 8: Nerve Conduction Velocity • In this activity‚ we will be investigating action potential like in activities 1-4‚ and the nerve conduction velocity. We will test an earthworm nerve‚ frog nerve‚ and two
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decomposition of water in simple but very colorful and dramatic fashion on an overhead projector. Concepts: • Decomposition reaction • Oxidation–reduction • Electrolysis • pH Materials: Sodium Chloride/universal indicator solution‚ NaCl‚ 25 mL Overhead projector Pencil lead‚ 0.7 mm Battery lead with alligator clips Petri dish‚ disposable Battery‚ 9-Volt Graduated cylinder‚ 25- mL Safety Precautions: Universal indicator is an alcohol-based
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insoluble in the organic solvent dichloromethane (or methylene chloride)‚ CH2 Cl2. If a sample of Panacetin is dissolved as completely as possible in dichloromethane‚ the insoluble starch can be filtered out‚ leaving acetanilide and aspirin in solution. The purpose of this experiment is to extract the components of Panacetin. Although the acetanilide and aspirin are both quite insoluble in water at room temperature‚ the sodium salt of aspirin is very soluble in water but insoluble in dichloromethane
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Grade 11 Chemistry Year End Test Multiple Choice Identify the choice that best completes the statement or answers the question. ____ 1. The molar mass of copper(II) sulfate pentahydrate‚ CuSO4.5H2O‚ is a. 245.6 g/mol d. 241.5 g/mol b. 177.5 g/mol e. 249.6 g/mol c. 219.2 g/mol ____ 2. A 100.0-g sample of a compound is composed of 16.3 g of carbon‚ 32.1 g of chlorine‚ and 51.6 g of fluorine. The empirical formula of the compound is a. CClF d. C3Cl2F6 b. CClF3 e. C9Cl6F18 c. C2Cl2F6 ____ 3. A
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Diffusion and Osmosis Experiment Methods/Materials: 7.1 Experiment: Rate of Diffusion of Solutes In the initial set up of this experiment I had 2 sets of 3 screw-cap test tubes that had each been half-filled with 5% gelatin and 1-mL of the correct dye (either potassium dichromate‚ aniline blue‚ or Janus green) in each of the test tubes. I labeled the 3 test tubes of set 1 with which die they contained and marked them “5 ˚C”. Then with the other set I did the same exact thing‚ except I labeled
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reaction between the HCl molecules and water that results in formation of ions. Materials and Method A 100mL of beaker were filled up to aboput 2/3 full with the following solution: Tap Water 95 % C2H5OH 1M CH3COOH Distilled water Sodium chloride crystals Sucrose crystals 12M HCL 1M NaCl 5% sucrose solution 1M HCL Conc. H2SO4 1M NH4OH 1M NaOH 1M H2So4 1M CH3COOH 1M NH4Cl 17M CH3COOH 1M NH¬4OH + CH3COOH The electrodes of
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6.2 Vocab Black pepper- dried pepper berries that have been grinded into a grain High sodium food-salty food Iodized salt- Table salt Kosher salt-salt without additives Monosodium Glutamate-not actually salt‚ but used in the same way Rock salt-generally not used for consumption Sea salt-made by evaporating sea water Seasonings- ingredients you add to food to improve flavor Sodium chloride-salt Table salt-salt that is refined to remove impurities White pepper- used for light colored
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into a metal salt. (5) Dip your wire into a metal salt either the nitrate or chloride and place the wire onto the tip of the blue flame. (6) Observe the change in colour of the Bunsen burners flame and record the observations as you go. (7) As long as you clean the wire as directed in step 3-4 you can proceed into testing the other metal salts. QUESTIONS: Q1: Were there any main difference between the chloride salts and the nitrate salts? If there was please comment on what it was Yes‚
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