energy and alignment will occur to create more collisions in the same amount of time. Methods: List of Materials: • 110 mL of NaOH at 1 M (10 mL per run) • 110 mL of NaOH at 0.5 M (10 mL per run) • 220 mL of Acetic Acid at 50% (10 mL per run). • Vernier Temperature Probe. • Erlenmeyer Flask 200 mL. • Graduated Cylinder 25 mL. • Charged Computer with LoggerPro. Method: I gathered all my materials along with obtaining a lab coat‚ safety glasses‚
Premium Chemical reaction Chemistry Sodium hydroxide
Determining Red 40 Concentrations Using Absorption with Beer’s Law Introduction I like color and enjoyed learning about wavelengths and the spectrum of light‚ so I considered incorporating something related to that into my Internal Assessment. We also had just used concentrations in our Group 4 Project‚ so when I found an experiment that dealt with both of these I thought it was a great idea. This experiment is not completely original; the basic concept has been used multiple times. It uses Beer’s
Premium Chemistry Concentration Light
Tensile Testing Laboratory By Stephan Favilla 0723668 ME 354 AC Date of Lab Report Submission: Date of Lab Exercise: February 11th 2010 January 28th 2010 1 Executive Summary Tensile tests are fundamental for understanding properties of different materials‚ and how they will behave under load. This lab tested four different materials‚ including A-36 hot rolled steel‚ 6061-T6 Aluminum‚ polycarbonate‚ and polymethylmethacrylate (PMMA). Each material was tested three times using an Instron
Premium Tensile strength Elasticity
INTRODUCTION Chemical kinetics‚ which can also be explained as reaction kinetics‚ studies the rates of chemical processes and reactions. A lot of this has to do with the speed at which a chemical reaction occurs for instance the rate at which reactants and products appear and disappear. In this case chemical kinetics goes further in depth to understand what conditions affect the rate of a given reaction. This is important because it allows scientists to determine what type of reaction can occur
Premium Reaction rate Chemical reaction Chemical kinetics
Introduction: The Eighth Grade of the Franklin School of Innovation studied the various parameters of Hominy Creek. These parameters were Nitrates (No3)‚ Dissolved Oxygen (DO)‚ pH‚ Phosphates (Po4)‚ Turbidity‚ Temperature (Temp) and the Flow Rate‚ contrasted to the weather for the day. Macroinvertebrates were collected and identified before being released. E. Coli tests were taken and analyzed during this period. Data was collected for 14 days‚ from March 22nd to April 19th. Tests were collected
Premium Water Water pollution Oxygen
Introduction to Acids Base chemistry Purpose How to determine the constant equilibrium of an acid‚ Ka? How to evaluate the concentration (M) of an acid? In “part A” experiment‚ we would test the PH of different concentration of acetic acid (a weak acid which partially dissociated in water) with a PH probe. After we got the PH‚ we could find out the concentration of H+ by applying the relationship pH = -log [H+]. Having the determined value of [H+] of a weak acid with a known molar concentration
Premium Acid dissociation constant Acid PH
Different types of muscle contractions: Isometric- muscle contraction without a change in the length of muscle Concentric- Muscle applies force as it shortens (lifting) Eccentric- Muscle applies force as it lengthens (lowering) Difference between type 1 and type 2 muscle fibers * Slow-twitch fibers * Type-I fibers * Fatigue resistant * Contract slowly and with relatively little force * Rely primarily on oxidative energy system * Fast-twitch fibers
Premium Muscle Muscle contraction Myosin
the given mass of the ideal gas will increase/ decrease‚ the same ways as the temperature will increase/ decrease. An easier way to interpret this is that at a constant pressure‚ volume and temperature are directly proportional. Materials Lab quest Vernier gas pressure sensor Temperature probe 20 mL gas syringe 125 mL Erlenmeyer flask 3 600mL beakers hot plate Dry ice rubber stopper with 2-way valve Procedure and observations (Part 1) The first thing we did in this experiment was measure pressure
Free Gas Pressure Temperature
Chapter 2. General Principle of Electromagnetic Brakes 2.1. Introduction Electromagnetic brakes have been used as supplementary retardation equipment in addition to the regular friction brakes on heavy vehicles. We outline the general principles of regular brakes and several alternative retardation techniques in this section. The working principle and characteristics of electromagnetic brakes are then highlighted. 2.2. General Principle of Brake System The
Premium
Reviewer’s Name: Sanjeev Mishra UMN ID Number: 4585009 The Photoelectric Effect: A Determination of Planck’s constant Ian E. Jaeger School of Physics and Astronomy‚ University of Minnesota – Twin Cities 116 Church St. S.E.‚ Minneapolis‚ MN 55455 Abstract The photoelectric effect was explored to determine an experimental value of Planck’s constant‚ h. Included is a brief introduction to the history leading up to Einstein’s discovery of the photoelectric effect as well as the theory behind
Premium Photon Light Energy