ISC 1005C LAB WORKSHEET Interpreting the Weather Map OBJECTIVES: Upon completion of this lab‚ the student should be able to: ✓ Identify pressure systems on weather maps ✓ Develop wind directions/circulation from a pressure pattern on a weather map ✓ Identify frontal systems on weather maps ✓ Correlate precipitation and clouds phenomena to pressure patterns and fronts. INTRODUCTION: The History behind Weather Maps Creating a daily weather map was not possible
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Lab Report: Titration Lab Prepare a solution of a given concentration; understand titration including acid-base reactions‚ pH‚ stoichiometry and molar equivalence. Chemicals and equipment: NaOH pellets close to purity‚ HCl 3M‚ phenolphtalein Beckers‚ flasks‚ burette‚ magnetic or manual stir pHmeter Waste management: The waste disposal will be handled through neutralization of your excess reactant to a pH between 4.0 and 10.0 and disposal with abundant rinsing. As a preparation for the
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Solvent/Water Trap Diagram Rodney Atwaters Halle Bair May 28‚ 2013 Chemistry 36100 Introduction The purpose of this lab was to produce benzoic acid by mixing sodium benzoate with hydrochloric acid. The Hydrochloric acid used in the experiment was a stock solution made by mixing HCl Acid and deionized water. HCl acid‚ historically called‚ muriatic acid or spirits of salt‚ hydrochloric acid is produced from sulfuric acid and common salt‚ NaCl (Princeton.edu). Since the early 1900 ’s‚ sodium
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Introduction The objective of this lab was to show how stoichiometry is applied to a specific chemical reaction. Stoichiometry is pretty much the math behind chemistry. Doing stoichiometry can calculate masses‚ moles‚ and percents with a chemical equation. The use of stoichiometry is how we were able to find the limiting reagent in this lab. A limiting reagent is the chemical that will be used up first. Many calculations had to be made throughout this lab. Some of the calculations we made were
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Lab Analysis Questions 1. What are the important ions for most neurons when considering changes in membrane potential? (3 points) 2. What is the resting membrane potential? (3 points) 3. What does it mean that the voltage just inside the membrane is negative? (4 points) Neurophysiology of Nerve Impulses Activity 2: Receptor Potential (20 points total) Notes: • After reading the Overview and Introduction‚ Click on Experiment. • Follow the directions on the left side of the
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Chemical Reactions Lab Objectives: 1. To examine a variety of reactions including precipitation‚ acid-base‚ gas forming‚ and oxidation-reduction reactions. 2. To identify the products formed in these reactions and summarize the chemical changes in terms of balanced chemical equations and net ionic equations. 3. To identify the species being oxidized and reduced in oxidation-reduction reactions and determine which species is the oxidizing agent and the reducing agent. Chemical equations represent
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Julie Nguyen Equilibrium Lab 4-28-14 I. Purpose To study the affect of temperature & concentration changes on systems in equilibrium II. Safety Wear apron Wear goggles Do not spill chemicals Clean up after use Wash hands Chemicals are TOXIC (by Britney Spears) III. Procedure A. Iron-thiocyanate equilibrium Pipet .3mL of 1 M iron (III) nitrate and .3 mL of 1 M ammonium thiocyanate. into clean 250 mL beaker. Add 75 mL of DS water. Mix well. Divide the solution into equal
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Chm235LL 2/18/14 Caffeine Isolation Lab I. Abstract Solid crude caffeine was extracted from tea and purified via sublimation. The melting point was experimentally found at 215.9-218.7oC. II. Introduction Caffeine is the most dangerous substance being used in lab this semester‚ but it’s also one of the most favorite chemicals commonly ingested among college students. The main purpose of this lab was to extract caffeine from a beaker of about 20 ml of tea. Sublimation was an effective and convenient
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Neurotransmitter Release (20 points total) Notes: • After reading the Overview and Introduction‚ Click on Experiment. • Follow the directions on the left side of the menu to complete the lab. Use the data chart to answer the following questions. You do not have to submit your lab to be recorded. Lab Analysis Questions (5 points each) 1. What is the purpose of a neurotransmitter? 2. Which chemical has the greatest effect of neurotransmitter release? 3. Why does the stimulus intensity
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Toxicology Lab 1. In this investigation‚ a wide range of concentrations of Sodium Chloride (NaCl) solution were created and the effects that they had on radish seeds were tested. This ultimately created a doseresponse experiment in which it was detectable whether or not radish seeds were a reliable bioassay for the toxicity of NaCl. The goal of this experiment was to determine a correlation between toxicity and seed germination/radicle
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