Chromatography of Commercial Analgesics Chromatography of Commercial Analgesics CHEMISTRY 200L EXPT 4 PAGE 8 - 11 CHEMISTRY 200L EXPT 4 PAGE 8 - 11 Janna Vernice R. Villalon*‚ Christian V. Villanueva‚ Cyd Vincent L. Zamora Department of Chemistry‚ College of Science *Corresponding author; e-mail: janna.villalon@rocketmail.com Abstract In analyzing the chromatography of analgesics‚ thin layer chromatography (TLC) was used. A very thin (micron) film of silica is coated on a glass
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CHAPTER 4 THE ACCOUNTING CYCLE: ACCRUALS AND DEFERRALS OVERVIEW OF BRIEF EXERCISES‚ EXERCISES‚ PROBLEMS‚ AND CRITICAL THINKING CASES Brief Exercises B. Ex. 4.1 B. Ex. 4.2 B. Ex. 4.3 B. Ex. 4.4 B. Ex. 4.5 B. Ex. 4.6 B. Ex. 4.7 B. Ex. 4.8 B. Ex. 4.9 B. Ex. 4.10 Learning Objectives 3‚ 4 3‚ 4 3 3 6 4 5 5 5 8 Topic Deferred expenses and revenue Deferred expenses and revenue Accounting for supplies Accounting for depreciation Accrued revenue Unearned revenue Accrued salaries Accrued interest Accrued
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Darwin’s Finches Lab In this inquiry lab‚ we explored natural selection using a laboratory. We wanted to see what was the effect of the type of food available on the frequency of different types of bird beaks. Our hypothesis was that If the type of the food available changes‚ then the frequency of beak types will change‚ because birds with beaks more suited to the available food will be more successful over time. Variables: Independent Variable: type of food available
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plants. Light intensity and carbon dioxide 3. Why is chlorophyll important for all biological life? It is necessary for photosynthesis which creates food for plants which is food for animals. 4. A. In Part I of the procedure‚ what is the name of the indicator used to identify the presence of CO2? Phenol Red 4. B. What color did the indicator turn after blowing air into the water through the straw? Yellow 5. A. What color did the indicator turn after the tube was placed under a light source for 30
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Measurements Lab Name Length Measurements – Follow the Instructions in the Lab Manual and fill in your data in the tables provided. Data Table 1 – Length measurements |Object |Length (cm) |Length (mm) |Length (m) | |CD or DVD |12.00 |120.0 |.1200 | |Key
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Physical and Chemical Change Objective: Recognize and distinguish between chemical and physical changes. Materials: - lab balance - microspatula - lab burner - dropper pipet - 5 test tubes - mortar and pestle - test tube rack - magnet - test tube holder - insulating pad - watch glass - safety goggles - glass square - lab apron or coat - copper sulfate pentahydrate - iron fillings - sodium chloride - magnesium ribbon - hydrochloric acid - paper
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Alexis Becker Pre-Lab Experiment 7 Avinash Pallagani Investigating Stoichiometry with sodium salts of carbonic acid 4/2/14 A summary of the concepts: The purpose of this lab is to better understand “stoichiometry”. We will be reacting sodium carbonate (NaHCO)3 and sodium carbonate (Na2CO3) with hydrochloric acid to produce sodium chloride‚ water‚ and carbon dioxide. The balanced chemical reaction looks like this: NaHCO3 + HCl = NaCl + H2O + CO2 CAUTION: Be especially
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IS3110 – Risk Management Lab # 9 – Develop recovery back-up procedures and recovery instructions 1. How does documented back-up and recovery procedures help achieve RTO? By having effective backup and recovery procedures you should have the necessary resources to restore systems from backups and a repeatable process that is known to succeed in achieving RTO. By documenting and implementing backup and recovery procedures‚ the process for recovery is much more efficient‚ helping with the time
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Unit 4 test Please answer the following questions. You may use your Periodic table and vocab (65 points) Match the following items. (14 points) 1. emitted from a cathode ray tube Bohr 2. discovered the neutron Chadwick 3. discovered the electron JJ 4. postulated the quantum atom nucleus 5. discovered the proton electrons 6. father of atomic theory Dalton 7. location of most of the mass of the atom Bohr 1. unlike charges attract 2. like charges repel
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The Sustainability Lab introduced what defines sustainability and how important it is in any environment through the simulation of a fictional island environment. It showcased what steps and requirements are needed to maintain an environment without it plunging into deterioration‚ plagued with barely a few to none resources to unlimited desires. Subsequently‚ both the data table and the graph display a direct correlation between the number of people in the island environment and the number of water
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