Formula of a Hydrate Lab Design: Problem: What is the chemical formula for a hydrated copper (II) sulphate compound? Controlled Variable: The mass of hydrated copper (II) sulphate. Responding Variable: The mass of dehydrated copper (II) sulphate‚ mass of H2O Materials: Ones on the handout + Hot plate. Procedure: 1. Mass 3.00g of hydrated copper (II) sulphate using electronic balance 2. Measure the mass of a thin‚ crucible dish using electronic balance 3. Gently pour hydrated
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Williams‚ Brandon Physics‚ Period 1 23 May‚ 2014 Resonance Lab Purpose: To determine the speed of sound using the resonance method‚ temperature method and percent error. Hypothesis: If the temperature of the room’s 20 degrees C‚ then using the temperature method‚ the speed of sound is 344m/s. Vs – Vo + 0.6m/s T / C = 332 m/s + .6 m/s (20 C) / C = 344 m/s Conclusion: Using the resonance method the speed was 330 m/s. using the average temperature
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pH and Chromatography Lab Report Kevin Rivera Biology Mr. Langley 2C 10/7/13 Introduction In this lab‚ of pH and Chromatography‚ in the pH aspect of the lab we are trying to figure out the pH level of certain chemicals by writing down of known solutions to find the type of unkown solution using pH standards. In the Chromatography‚ we are trying to separate the chemicals using water and a piece of paper. Methodology Materials: Safety Goggles pH indicator & pH indicator key
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Lab 10 Name: Complete the following then save with your name and attach to the dropbox for lab 10. Data Tables and Post-Lab Assessment Experiment 1 Post-Lab Questions 1. Label each of the arrows in the following slide image: A. Chromosomes B. Nucleus C. Cytoplasm D. Cell wall 2. What is the difference between the rough and smooth endoplasmic reticulum? 3. Would an animal cell be able to survive without mitochondria? Why or why not? 4. What
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AP Lab #5 Plant Pigments/Photosynthesis I. Identifying the Effects of Different Variables of Light and Carbon Dioxide on the Rate of Photosynthesis and Observing the Separation of Pigments Through Chromatography II. Introduction Plants have a variety of pigments‚ all of which absorb a different color of light. The three main pigments are chlorophyll a‚ chlorophyll b and carotenoids. Chlorophyll a is the primary plant pigment that absorbs red and blue light‚ which ultimately appears green to the human eye
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Sample Lab Report: Factors which Affect the Activity of the Enzyme Catalase Purpose: Must include: background information about concepts involved in the lab‚ statement of purpose of the lab identification of independent and dependent variables. A hypothesis is often not necessary or appropriate. Enzymes are proteins that speed up chemical reactions in cells. They break down molecules called substrates. Each enzyme has only one substrate that it breaks down. Enzymes are produced in
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Virtual Lab Unit 3 1. Briefly describe the steps required to aseptically transfer bacteria from an unknown to a tube of liquid broth. You might have to research this using the "T" button (Tell Me More About...) To aseptically transfer bacteria from an unknown to a tube of liquid broth you have to flame the loop or wire before you begin to sterilize it. You then remove the caps from the tubes and flame the mouths of the tubes to prevent air-borne contamination. When all this is done‚ you have to
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Use a study guide only please and note two of the answers are wrong regarding conversions.!! Up to you to figure which ones. Just know its nice to compare answers to see if your on the right track. LAB 1 1. Describe the function of the following pieces of safety equipment and how each might be used: (10 points) a. Eye Wash (2 points) a. The function of the eye wash station is to flush your eyes of any chemicals or other harmful liquids you may have gotten in your eyes. You would
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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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Week 4 Homework Solutions: Problem Set 4 1. Determining Profit or Loss from an Investment. Three years ago‚ you purchased 150 shares of IBM stock for $88 a share. Today‚ you sold your IBM stock for $103 a share. For this problem‚ ignore commissions that would be charged to buy and sell your IBM shares. a. What is the amount of profit you earned on each share of IBM stock? The profit on each share of IBM stock was $15. $103 priced when each share was sold‚ $88 priced when each
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