tubes in the 40 degrees celsius water bath and incubate them for 10 minutes. The other thing needed is glucose strips. After the tubes have been incubated for 10 minutes‚ place a glucose strip in each tube for one second. Let it sit for thirty seconds‚ then compare to the chart provided. For unit 7.4 the experiment called for two microfuge tubes. One labeled "control" and label another one "EDTA". Add 1.25 mL of EDTA to the EDTA tube‚ add 1.25mL of distilled water to the control tube. Add 3 drops
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limiting reagent between the reaction of lead (II) nitrate and potassium iodide. To determine the percent yield of lead (II) iodide. Date Started: 13/4/12. Finished: 19/4/12. Data collection and processing Measurements: * Amount of distilled water: 75.0ml ± 0.5ml. * Mass of watch glass: 31.65g ± 0.01g. * Mass of watch glass + potassium iodide: 32.45g ± 0.01g. * Mass of potassium iodide: 0.8g ± 0.02g. * Mass of watch glass + lead (II) nitrate: 32.66g ± 0.01g. * Mass of lead
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Microscope lab report Introduction Microscope is a tool used to enlarge images of small objects that are hard to study with bare eyes. The compound light microscope‚ which is going to be used in this lab activity‚ is an instrument with two lenses and various knobs to focus the image. In this lab‚ we will learn about the proper use and handling of the microscope. Objectives: •Demonstrate the appropriate procedures used while using the compound light microscope correctly. •Make and use a wet mount
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solutions to mix. 9. Measure and record the total mass of the flask and all its contents. Part B : Antacid Tablet in water 1. Take a Erlenmeyer flask and fill it half with water. 2. Take an antacid tablet out of its package. 3. Place the tablet and the flask containing water on the balance scale. Record the mass of the flask‚ water‚ and the tablet. 4. Add the tablet to the water and record your observation. 5. When the reaction has come to a stop‚ measure and record the total mass of the flask
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:___________ Chemistry Laboratory 101__ Date Submitted[1] :___________ Members[2]: Instructor’s Initials[3] :___________ 1. _____________________ 2. _____________________ 3. _____________________ 4. _____________________ Laboratory Report Sheet The Bunsen Burner Activity 1 Objectives:4 1. ________________________________________________________ 2. ________________________________________________________ 3. ________________________________________________________
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tank is provided with a diffuser and stilling materials at the bottom to provide a constant head of water to be discharged through a bellmouth entry to the flow visualisation pipe. Flow through this pipe is regulated using a control valve at the discharge end. The water flow rate through the pipe can be measured using the volumetric tank (or measuring cylinder) of a Hydraulics Bench. Velocity of the water can therefore be determined to allow for the calculation of Reynolds’ number. A dye injection system
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Experiment 4: Qualitative Analysis of Cations and Precipitation Reactions The overall goal of experiment four was to determine the identity of unknown cations presented to the student. But in order to know the identity of these unknowns‚ in part 1‚ Ag+‚ Pb+‚ and Hg22+ were presented to the student in aqueous solutions and then precipitated through experimentation. In part 2‚ the same procedure was enacted to determine which substances precipitated through qualitative analysis. Solubility rules
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connectors. THEORY: The oscilloscope is a very widely used instrument because of its versatility. It is a standard piece of equipment used in many types of scientific laboratories. It moves a beam of electrons across a fluorescent screen that gives off light where the electrons hit it. It can be used as a graph to draw vertical and horizontal displacement from the origin along the y and x axis respectively. The values displayed along these axes are that of the voltage. The y measure is taken to be the
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Biology 160 Lab Manual Tacoma Community College Last update 06/03/2013 This page left intentionally blank Table of Contents Table of Contents i Laboratory 1: Principles of the Scientific Method 4 In-Lab Report Sheet 12 This page has been left intentionally blank 27 Laboratory 2: Scientific Methodology & Enzyme Activity 28 In-Lab Report Sheet 28 Objectives 33 Introduction 33 Parts of the Swift M5 Microscope 33
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respiration occurs with oxygen‚ it is called aerobic respiration; this is what most organisms require. In the end‚ the food molecules are broken down with water and carbon dioxide. The energy of the food molecules are released and stored in the ATP bonds. The chemical equation for aerobic respiration is: Glucose + water+ oxygen àcarbon dioxide + water +energy +heat. My prediction for this experiment is that if the mealworms are at a cold temperature‚ then their breathing and metabolic rate would slow
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