Copper Cycle Lab Purpose: In this experiment the student will gain familiarity with basic lab procedures, some chemistry of a typical transition element, and the concept of percent yield. Equipment: Balance (2) 250 mL beakers Evaporating dish Stirring rod Hotplate 100 mL grad cylinder Weighing paper Materials: 0.5 g of copper wire 2.0 M H2SO4 (aq) Acetone Conc. HNO3 (aq) 3.0 M NaOH Granular zinc Introduction: Understanding the type of reaction taking place is an important part of predicting the products of a reaction. Common chemical reactions can be described as synthesis, decomposition, single replacement, double replacement, combustion, or oxidation and reduction reactions. Each of these types of reactions behaves in a similar fashion.
Chemical Reactions Formal Lab Report By Mason Ely Background We did this lab on Chemical Reactions and to study and learn about the law of conservation of mass. Lab stations tested each method, synthesis, double displacement, decomposition, and single displacement, to study the law of conservation of mass. The law of conservation of mass is the law that states that matter cannot be created nor destroyed without human mistake in a chemical reaction. In station A we tested the chemical reaction of synthesis; synthesis is the chemical reaction where two or more elements or compounds form one compound product. In station B we tested the chemical reaction of decomposition; decomposition is the chemical reaction where the chemical compound is separated into elements or simpler compounds.
Metal, Metalloid, or Nonmetal act activity 11/2/2014 The chemical reactions given off by each element will be studied Supplies see lab Procedure see lab Iv the types of elements used Dv the chemical reaction given off Constants well plates, spatula, pipette, wash bottles, HCI, and 1MCuCl2 Conductivity Mg no C yes S no Si yes Pb no Sn yes S brittle Pb Malleable Si Malleable Mg Malleable Sn Brittle C Malleable Crushing Qualitative observations Pb, Mg, and Si had a shiny and reflective surface S had a yellow and dusty surface Sn had a lined surface while C has a smooth surface Data analysis Pb, Mg, and Sn are metals. S and C are nonmetals. Si is a metalloids. You can tell whether a element is a metal or nonmetal based on its place on the periodic table, elements on the left side are metals, elements on the right are non metals, where the left and the right meet up we get the metalloids, elements sharing both the properties of metals and nonmetals. I can also figure this out from are observation of the elements.
Finally, we analyze the errors in both parts of the lab by propagation by substitution and compare the theoretical-experimental values using errors. III. Results: The theoretical buoyant forces for the sphere, the small cylinder, the block, and the big cylinder are 0.297N, 0.131N, 0.369N, and
5. Compute a linear least-squares-fit of the calibration data and plot the resulting line on the same graph as the calibration data. Comment on the linearity of the pressure transducer and scannivalve. Part 3: Calibration of the Tunnel 1. Connect the micromanometer (calibrated in Part 2) across the wind-tunnel contraction in order to measure the static pressure drop.
02/27/2014 Curled Metal Inc.- Engineered Products Division: Case Study Analysis Francesco Panazzolo Fall 2013-2014 Case Presentation Curled Metal Inc. (CMI) faced a pricing and channel marketing decision for metal pile cushions utilized during pile driving. CMI’s approach to metal pads has significant efficiency advantages over currently used pads available in the market. However, CMI has to take into account several barriers to entry into this market. The primary barrier is that most companies viewed role of pads as a necessary accessory or tangent item instead of viewing them as a potentially value adding or cost reducing part of pile driving. In order to penetrate the market, CMI has to alter the point of view of pile driving pads for the opinion leaders, engineering firms, and contractors involved in the decision process.
AP Physics C Lab Report i. Purpose: To investigate the relationship in Newton’s Second Law ii. Materials: Pasco track and cart, endstop, pulley, string, washers, lab pro with motion detector, logger pro iii. Procedure: 1. Assemble the materials as shown in the diagram to the left.
Experiment #4 – Properties of Gases May 31, 2014 11:58 am UCHM 240 General Chemistry I Abstract: This lab will give the opportunity to explore some physical and chemical properties of gases and use these properties to identify gases when they are present. Purpose: In this lab we will examine some common visible physical properties of gases. We will also compare chemical properties of gases against one another. We will then attempt to identify these gases with the properties we have observed. The gases being observed in this lab are hydrogen (H2), oxygen (O2), and carbon dioxide (CO2).
Stress in the workplace can be caused by numerous reasons and can have a major impact on work performance and job satisfaction. It is important that the organization is able to identify the stress related issues and the contributing factors that are causing stress. The stress reducing approaches; stress management training, reduction of stressors and alternate work schedules and telecommuting are essential for reducing stress within an organization as well as benefit the employees at Air Devils
Paper Chromatography Chemistry Lab Report 1 (2015) Final Version Name: Harry He Class: AP Chem 3 Date: Sep.17 , 2015 Terminology Affinity – natural attraction or force between things. Capillary Action – the movement of liquid within the spaces of a porous material due to the forces of adhesion, cohesion, and surface tension. Chromatogram – the graphic record produced by chromatography. \ Mixture – a material composed of two or more elements or parts. Mobile Medium – gas or liquid that carries the components (moile phase).