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  • More Iron Filings
    1,223 words
    Physics - Electromagnetism Planning Previous Scientific Knowledge. When insulated wire is wrapped round an iron nail and the ends of the wire are connected to a battery the nail becomes capable of picking up iron filings and paper clips. This is called an electromagnet. The nail is magnetised by the current in the wire. If the battery is disconnected then the iron clips will fall off. This is because most of the magnetism has been lost. The passage of an electric current along a wire creates a m...
  • Amount Of O 2
    1,140 words
    The mensuration of cell respiration of plants based off of the amount of O 2 produced Abstract: In this experiment, the rate of reaction for plant cell respiration will be measured, based upon the amount of O 2 consumed in order to form CO 2 based along the standard equation defining the breakdown of glucose and oxygen into carbon dioxide, water, and free energy. The amount of O 2 used will be measured by a re spirometer, an apparatus that functions based off the the common ideal-gas principles ...
  • Empirical Formula Of Magnesium Oxide
    657 words
    Empirical Formula of Magnesium Oxide Date: Aim: The aim of this experiment was to determine the empirical formula of magnesium oxide. Equipment: . Balance. Crucible and lid. Bunsen burner. Magnesium ribbon (0.2 g). Steel wool. Crucible tongs. Pipe clay triangle. Tripod Procedure: 1. Obtain a clean, dry crucible and lid, then heat them for approximately 5 minutes over a Bunsen burner 2. Clean the surface of a 20 cm strip of magnesium ribbon using steel wool 3. Coil the magnesium ribbon, so that i...
  • 099 2 31 10 1 114 0
    544 words
    Reaction Kinetics: Rate of Reaction Of Tertiary-Butyl Bromide Purpose: The purpose of this experiment is to find the order of t-BB graphically, to find the k (rate constant) at 0 C and at room temperature, also to find the Ea (activation energy). Principles: Several different chemical kinetic principles were used in this experiment. The reaction rates of this chemical equation were determined experimentally. This then allowed the reaction mechanisms (i.e. orders of each component, rate constant,...
  • Crucible Over The Bunson Burner
    836 words
    In this experiment we are trying to find the percentage of water in Barium Chloride Dihydiate. During the experiment you must pay close attention to everything done. We are going to try to stay below a 8 percent error. When timing, make sure you only have the crucible over the bunson burner for 10 minutes, no more, no less. Be aware of how dangerous this chemical can be, so please be careful. Located below is a list of all the materials you will need to complete this experiment. Please make sure...
  • The Mutant Pabp 2 Protein Need
    2,721 words
    Protein Binding Studies for Expanded Poly-A Repeats and Mutant PABP 2 resulting from Oculopharyngeal Muscular Dystrophy INTRODUCTION: Oculopharyngeal muscular dystrophy (OPMD) is an inherited neuromuscular genetic disorder. It has an autosomal dominant pattern of inheritance (Fried et al. 1975) in that the abnormal gene can be transmitted from only one parent. A child of an affected parent has a 50% chance of being affected. The disorder is found to be more prevalent among French-Canadians and i...
  • Laboratory Stocklaboratory Stock Part B 1
    2,047 words
    PURPOSE: In this particular laboratory experiment, we are going to determine the molar mass of an unknown gas, from the gas density. We are also going to use gas density, along with the kinetic molecular theory, to explain the behavior of gas filled balloons. Finally, we are going to demonstrate the effects of temperature and pressure changes of gasses. PROCEDURE: We are using the experimental procedure as described in our laboratory manual. University of Wisconsin - River Falls Laboratory Manua...
  • Molecules Of Magnesium
    286 words
    Analysis: B) The magnesium strip had turned into a powdered form in which it has degenerated C) 37.9 grams D) Mg - 50 / 34.31 = 1.45 - 1 O - 50 / 16.0 = 3.12 - 2 Therefore the ratio will be 1 to 2: MgO 2 E) Based on the evidence the answers are of the ones shown on the above Evaluation: F) The mass of the magnesium oxide would be far too low if there was any magnesium oxide escaping during the experiment as it causes for less particles therefore less mass to be in the container causing a lower c...
  • Rutherford's Scattering Experiment 2
    1,682 words
    TABLE OF CONTENTS 1. INTRODUCTION 2. BODY 2.1. Biography of Ernest Rutherford 2.1. 1. Birth place 2.1. 2. Brief history of education and work 2.1. 3. Death place 2.2. The experiment 2.2. 1. Discovery of radiations in elements 2.2. 2. Rutherford's scattering experiment 2.2. 3. Discovery of radioisotopes 2.3. Application to real life and implication for society 2.3. 1. X-Rays 2.3. 2. Radiation treatment of cancerous tumors 2.3. 3. Food preservation 3. CONCLUSION INTRODUCTION My ISU is on scientist...
  • Initial Velocity Of The Second Experiment
    816 words
    Measuring the Velocity of an Object Using the Ballistic Galvanometer ABSTRACT: The objective of this lab is to prove the conservation of energy and momentum by comparing initial velocities of two different experiments using the Ballistic Pendulum method. To conduct this method, a ballistic galvanometer was used to measure the velocity of a metal ball in an inelastic collision and in projectile motion. The ballistic galvanometer consists of pendulum with a holding chamber at the bottom of the pen...
  • Standard Acid Solution
    446 words
    Standardization of a Base When standardizing a substance, you are finding the concentration of that substance. The most common way to do this is by titration. In this experiment I took a standardized base and titrated it with a know and an unknown acid. A standard solution has an accurate concentration. To standardize a base, everything must be standardized. A titration must be done with a standard acid solution. While trying to figure out the concentration I added a standard solution to a known...
  • Larger Area For The Hydrogen Peroxide
    570 words
    Aim To investigate what affect the surface area of potato (raw) has on the production of oxygen. Introduction Plant cells in potato have an enzyme called catalase which turns bleach (H 2 O 2) hydrogen peroxide into O 2 and H 2 O. Catalase is the fastest working enzyme and is found in many living things, it speeds up the breakdown of hydrogen peroxide, and the bubbles released are O 2. The reaction taking place is 2 H 2 O 2 = 2 H 2 O + O 2. Prediction I predict that the higher the surface, the mo...
  • 9 75 M S 2
    438 words
    Picket Fence (Photogate) Exp. 2 Purpose: To measure the acceleration due to gravity by measuring the tine of fall of a picket fence dropped through a photogate. Introduction: You drop a picket fence, a clear stripe with black bands, through a photogate. The photogate beam is blocked by band and the time between bands becomes increasingly shorter. The computer program, Science Workshop, calculates the average speed between bands. A graph of average speeds versus time gives the aci eration due to ...

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