Rate equation Essays

  • Rate Law Lab

    1449 Words  | 6 Pages

    Written by Elijah Batchelder Reaction Order and Rate Laws 03.24.2017 Lab Partner: Jackson Mendenhall Lab Instructor: Nicole Capps Introduction In the following lab experiment, reactions will be induced in order to experimentally determine both the rate laws and the reaction orders of hydrochloric acid and sodium thiosulfate in the synthesis of the two solutions. A rate law is an equation which can tell you how fast a reaction will take place, dependent on the concentrations of each solution

  • Iodine Clock Reaction

    1094 Words  | 5 Pages

    of concentration on reaction rates Introduction: - The iodine clock reaction involves mixing two clear solutions and producing a new clear solution. Then, after several seconds, the solution turns dark blue. This can be used to measure how fast a reaction occurs which is known as chemical kinetics. The time taken for the reaction mix to turn blue can be measured with a stopwatch. The reactions that form the basis for the iodine clock reaction are shown below. Equation 1: H2O2 + 3 I- + 2 H+ → I3-

  • Second Order Reaction Rate Constant Of Ibuprofen With Atrazine Lab Report

    1141 Words  | 5 Pages

    reaction rate constant of Acesulfame K with the different transient species studied, two pairs of independent competition kinetics were established for each transient: Acesulfame K with Ibuprofen and Acesulfame K with Atrazine. Assuming the first pair of competition for the hydroxyl radical generated by NaNO3 irradiation is Acesulfame and Ibuprofen (ACE, IBP). Their respective reaction rates are (M s-1): (Eq. 6) (Eq. 7) With k and k’ the second order reaction rates of Ace and

  • Chemistry IA: Kinetic Reaction With H2O2

    1749 Words  | 7 Pages

    Assessment Investigating the relationship between KI concentration and its rate of reaction with H2O2, which is measured using a spectrophotometer. Research Question How will changing the concentration of KI affect its rate of reaction with hydrogen peroxide? Calculated as inverse of time taken for the blue-black coloration of tri-iodide ion and starch solution, measured using a spectrophotometer. Introduction: The rate of reaction of a chemical reaction can be affected by several factors, one

  • Arrhenius Equation Research Paper

    856 Words  | 4 Pages

    Arrhenius equation is a mathematical expression which illustrates the effect of temperature on the rate of a chemical reaction and is used to calculate reaction-rate constants\cite{logan}. In the equation, we have $k$ as the reaction-rate constant, R as the thermodynamic gas constant, A as the pre-exponential factor, E$_a$ as the activation energy and finally $T$ as the absolute temperature. Generally, the equation is represented in exponential form: \begin{equation} k = A \exp[-E_a/RT]

  • Iodine Clock Lab Report

    777 Words  | 4 Pages

    Kinetics: The Iodine Clock Reaction Kinetics is the study of the rates of chemical reactions. A reaction rate describes the reaction’s speed, it is the rate at which the starting materials of a reaction (reactants) react and transform into the final produced materials (products). The greater the reaction rate, the less time required for reactants to be converted to products. Understanding the factors and conditions influencing reaction rates of is of fundamental importance in industrial chemistry where

  • Kinetics Reaction Lab

    1324 Words  | 6 Pages

    the mechanisms of them2. The rate law relates the rate of a reaction to the concentrations of reactants (and catalysts) raised to various powers. The rate law is shown in Equation 11. Rate = k[A]x[B]y[C]z (Eq.1) The rate constant (k) is a proportionality constant in the relationship between rate and concentrations, but changes when temperature changes. The effect of temperature on a reaction rate is given by the Arrhenius equation2 (Equation 2): k=Ae-Ea/RT (Eq.2)

  • Le Chatelier's Theory

    800 Words  | 4 Pages

    INTRODUCTION The concept of chemical equilibrium was developed after Berthollet (1803) found that some chemical reactions are reversible. For any reaction mixture to exist at equilibrium, the rates of the forward and backward (reverse) reactions are equal. In the following chemical equation with arrows pointing both ways to indicate equilibrium, A and B are reactant chemical species, S and T are product species, and α, β, σ, and τ are the stoichiometric coefficients of the respective reactants

  • Rate Of Reaction Lab Report

    946 Words  | 4 Pages

    Hydrogen peroxide and sodium thiosulphate on the rate of reaction between potassium iodide (KI), hydrogen peroxide, Sodium thiosulfate (Na2S2O4) under acidic condition. Introduction: The rate of reaction can be defined as the rate at which the reactants are consumed of the rate at which product is formed. It is the ratio of the concertation of reactant used of concentration product to time, it measured in mol.dm-3.S-1. This can be expressed as Rate of reaction = - (∆[reactant])/∆time = (∆[product])/∆time

  • Rate Of Reaction Experiment

    1322 Words  | 6 Pages

    Rate of Reaction Experiment Rate of reaction is a term used to measure the time or speed that the reaction occurs in. A rate of reaction can be effected by different factors, such as the concentration, temperature, whether or not a catalyst is involved, the state that the reactants were in at the time of the experiment and the amount of pressure that was involved in the experiment. If the concentration, temperature and the amount of pressure involved were higher than the rate of reaction would be

  • Stoichiometry Of Baking Soda And Sodium Hydrogen Carbonate

    1477 Words  | 6 Pages

    reaction speed and or rate of reaction. To observe these reactions made by having reactants, sodium hydrogen carbonate, NaHCO3 known as baking soda and acetic acid, CH3COOH that is vinegar being mixed together. The products were carbon dioxide, water, and sodium acetate. Because this reaction will be based on its speed according to the difference in temperature, the higher the temperature the faster the reaction will occur creating a direct relationship. The balanced equation is as follows: NaHCO3

  • 9-Hydration Investigation

    1491 Words  | 6 Pages

    determine the order and rate law expression of the reaction between sodium iodide and iron (III) nitrate 9-hydrate. Introduction The most interesting topic in grade twelve chemistry was the unit on kinetics, therefore after brainstorming a mind map on the stimulus that I chose, I was interested in creating an experiment to determine the order and rate law expression between two reactions myself. The original idea for this project came from a lesson on the order of reactions and rate law expressions. After

  • Glass Tube Experiment

    1350 Words  | 6 Pages

    The Relationship between Molecular Weight and the Rate of Diffusion of Substance Anthony Earl D. Cristobal Group 1 Sec. U-7L 16 October 2014 Abstract The relationship between the molecular weight and the diffusion of the substance was determined using two laboratory experiments. In the first experiment, a horizontally placed glass tube was set. Two cotton balls were soaked in hydrochloric acid (HCl) and ammonium hydroxide (NH3). At the same time, the cotton balls were inserted

  • Heat Of Formation Of Nacl Essay

    1151 Words  | 5 Pages

    to find out the respective enthalpies of the reactions. These two values completed the Table of Thermochemical Equations given and with respect to Hess’s Law, the heat of formation of solid NaCl was computed by adding the enthalpies in the table. Two Styrofoam cups and a thermometer through its lid served as the calorimeter where the reactions took place. Using the heat transfer equation, the enthalpy of the first reaction was computed to be -1.080 kJ/mol. On the other hand, the enthalpy of the second

  • 4 Factors That Affect The Rate Of Reaction

    908 Words  | 4 Pages

    Transition Work Reaction Rates – Let’s Go Faster The rate of reaction can be calculated using the formula: rate of reaction= (amount of reactant used or amount of product formed)/time → The steeper the slope created the faster the reaction, a steep slope occurs when the amount of reactant used/amount of product formed is large and the time over which this occurs is small. Factors that affect rate of reaction There are 4 distinct factors that each affect the rate of reaction: → Temperature:

  • Essay On Chemical Reaction

    864 Words  | 4 Pages

    or more different substances, the products. Chemical reactions can be used to do many daily tasks such as cooking and bodily functions. The reaction rate is the speed at which reactants are converted into products. In the lab done, the purpose was to look at the various ways a reaction rate can be changed. Multiple factors could create different rates at which the reactant will become products. Some are temperature change, surface area, concentration, and using a catalyst. An example given was acidic

  • Rate Of Reaction

    1035 Words  | 5 Pages

    temperature affects the rate of reaction Research Question: Does increasing or decreasing the temperature of hydrochloric acid affect the rate of reaction with magnesium? Introduction: The four factors that affect the rate of reaction; surface area, catalysts, temperature and concentration. In this case, it would be the temperature (Rate of Reaction of Magnesium with Hydrochloric Acid). According to the chemistry textbook, Chemistry higher tier, by increasing the temperature the rate of reaction increases

  • Molar Mass Lab Report

    886 Words  | 4 Pages

    per amount of substance. My task is to determine the molar mass of a product substance from one of the following equations: a. Zn(s) + 2HCl (aq) → ZnCl2 (aq) + H2 (g) b. CaCO3 (s) + 2HCl(aq) → CaCl2 (aq) + CO2 (g) + H2O(l) c. Na2SO3 (aq) + 2 HCl (aq) → 2NaCl (aq) + S (s) + SO2 (g) For my experiment, I chose to determine the molar mass of SO2, which is a product from the 2nd equation. For this experiment I have determined the independent, dependent and controlled variables and they are: Independent

  • Iodine Clock Reaction Lab Report

    1471 Words  | 6 Pages

    Title: The effect of concentration on reaction rates Introduction: - Chemical kinetics is the branch of chemistry that is concerned with the mechanisms and rates of chemical reactions. The mechanism of a chemical reaction is a description of what happens to each molecule at a very detailed level—which bonds are broken, which new bonds are formed, and how the three-dimensional shapes of the chemicals changes during the course of the reaction. The rate of the reaction is a measure of its speed. The

  • Rate Of Reaction Investigation

    1476 Words  | 6 Pages

    An Experiment into the Effect of Concentration on Rate of Reaction Introduction: A chemical reaction is when two or more substance called reactants are chemically bonded to form a new product, as a result of the process, for a reaction to take place, the particles must have enough kinetic energy to collide and form new bonds , this is called a successful collision. The minimum amount of energy needed for a successful collision is activation energy. The activation energy is able to loosen particles