Reaction rate Essays & Research Papers

Best Reaction rate Essays

  • Rates of Reaction - 937 Words
    Rates of Reaction Coursework Aim: To find out how different concentrations of sodium thiosulphate (Na S2 O3) affects the speed of its reaction with Hydrochloric acid (HCL). Introduction When Sodium Thiosulphate and Hydrochloric acid react they produce a cloudy precipitate. Both of the chemicals are clear solutions and they react together to form a yellow precipitate of sulphur, the equation for this reaction is: Na2 S2 O3 + HCL, H2 O + NaCL + SO2 + S Sodium Thiosulphate +...
    937 Words | 5 Pages
  • Rates of Reaction - 820 Words
    Rates of Reaction Affected By Concentrations of a Substrate. Darian Naill September 19, 2011 Swanson AP Biology Introduction An enzyme is a protein molecule that helps other organic molecules start chemical reactions with one another; however, the enzyme itself is not affected by the reaction. A substrate is the substance acted upon by the enzyme. In this lab, catalase is the enzyme and hydrogen peroxide is the substrate. Catalase is found in both plant and animal tissues, and is...
    820 Words | 3 Pages
  • Rate of Reaction - 488 Words
    Aim: To determine the effect of altering concentration (mol dm-3) of hydrochloric acid (HCl) on the rate of reaction (mol dm-3 s-1) for the following chemical reaction: CaCO3(s) + HCl(aq) CaCl2(s) + H2O(l) + CO2(g) Research question: How does altering concentration (mol dm-3) of hydrochloric acid (HCl) affect the rate of reaction (g/s) for the following reaction: CaCO3(s) + HCl(aq) CaCl2(s) + H2O(l) + CO2(g) Background information: The reaction between calcium carbonate and hydrochloric...
    488 Words | 2 Pages
  • Rates of Reaction - 776 Words
    Investigating the rate of reaction between sodium thiosulphate and hydrochloric acid Background Sodium thiosulphate and hydrochloric acid react to produce sulphur. Na2S2O3 (aq) + 2HCl (aq) SO2(aq) + S(s) + H2O(l) + 2NaCl (aq) The sulphur will be deposited in the solution and causes the solution to become opaque. Practical Techniques You will need to find out how to make accurate solutions. Where to start One way of measuring the rate is to time how long it takes to produce a certain amount of...
    776 Words | 3 Pages
  • All Reaction rate Essays

  • Rate of Reaction - 10674 Words
    Kinetics Kinetics 6.1 Rates of reaction 6.2 Collision theory 6 16.1 Rate Expression (AHL) 16.2 Reaction mechanism (AHL) 16.3 Activation energy (AHL) 6.1 Rates of reaction 6.1.1 Define the term rate of reaction. 6.1.2 Describe suitable experimental procedures for measuring rates of reactions. 6.1.3 Analyse data from rate experiments. © IBO 2007 Figure 601  An explosion is a quick reaction D ifferent chemical reactions occur at different rates (i.e....
    10,674 Words | 75 Pages
  • Rate of Reaction - 894 Words
    Investigating Rate of Reaction between Iodide ions and Peroxodisulphate ions with respect to Temperature and use of a Catalyst Introduction The aim of this experiment was to investigate the affect of the use of a catalyst and temperature on the rate of reaction while keeping all the other factors that affect the reaction rate constant. In the reaction, potassium peroxodisulphate and potassium iodide will be used to provide the peroxodisulphate ions and iodide ions respectively. The...
    894 Words | 4 Pages
  • Reaction Rate and Rate Law
    Chemistry 521 Exam I, Spring Quarter 7:30 - 9:00 PM, 25 April 2000 NAME 1. [10 points] What are the concentrations of HSO− , SO2− , and H+ in a 0.20 M KHSO4 solution? (Hint: 4 4 H2 SO4 is a strong acid; Ka = 1.3 × 10−2 for HSO− .) 4 2. [15 points] Calculate the pH of 1.00 L of the buffer 1.00 M CH3 COONa/1.00 M CH3 COOH (pKa = 4.74) before and after the addition of (a) 0.080 moles NaOH and (b) 0.12 moles HCl. (Assume there is no change in volume). 3. [10 points] The following...
    617 Words | 7 Pages
  • Rate of Reactions - 2099 Words
    RATE OF REACTIONS. The reaction rate (rate of reaction) or speed of reaction for a reactant or product in a particular reaction is intuitively defined as how fast or slow a reaction takes place. For example, the oxidative rusting of iron under the atmosphere is a slow reaction that can take many years, but the combustion of cellulose in a fire is a reaction that takes place in fractions of a second (right). Chemical kinetics is the part of physical chemistry that studies reaction rates. The...
    2,099 Words | 7 Pages
  • Effect of Concentration on Reaction Rate
    RESULTS AND DISCUSSION REPORT—EXPERIMENT 3 (CHEMICAL KINETICS) CALCULATIONS Effect of Concentration on Reaction Rate [S2O32-]initand [H+]init for each run, knowing the original concentrations and volumes of [S2O32-], [H+], and water used. [S2O32-]init= __(M[S2O32-])(V[S2O32-])__ [H+]init= _____(M[H+])(V[H+])____ V[S2O32-]+V[H+]+V[water] V[H+]+V[S2O32-]+V[water] Run 1 [S2O32-]init= (0.15 M)(10 mL) (10+3+2)mL = 0.1 M [H+]init= (3...
    812 Words | 5 Pages
  • Change the Rate of Reaction - 1706 Words
    Changing the Rate of Reaction PART 1: PARTICLE SIZE Question: How does changing the particle size of marble (CaCO3) affect the rate of reaction when it is added to hydrochloric acid (HCl)? Hypothesis: If I change the particle size of marble to test how to change the rate of a chemical reaction, than the chemical reaction with the smallest marble particles will produce CO2 the quickest because the larger the surface area, the more place the hydrochloric acid will have to collide with the...
    1,706 Words | 7 Pages
  • Rates of Reaction Lab Investigation
    Chemestry Lab Rates of Reaction (Picture from: http://sciencespot.net/Pages/kdzchem.html) The rate of reaction is how fast or slow a reaction is completed. This is important for factories and chemists all over the world. What happenes during a reaction is atoms or molecules that collide and form new molecules. You can affect this rate of reaction with: temperature of reactants or suroundings, surface area of reactants, if there is a catalyst present, but in theis lab the concentration was...
    977 Words | 4 Pages
  • Kinetics: The Rate of a Chemical Reaction
    Title: Kinetics: The Rate of a Chemical Reaction Objectives: 1. To study the kinetics of chemical reaction, 2 I- + S2 O82- I2 + 2 SO42- . 2. To study the effects of reactant concentration (persulphate, S2O82-, and iodide, I-) and temperature on the rate of chemical reactions. ( i) Study the effect of 0.20M (S2O82-) on the rate of chemical reaction. ( ii) Study the effect of 0.10M (S2O82-) on the rate of chemical reaction. ( iii) Study the...
    1,961 Words | 13 Pages
  • Rate Equation and Order Reaction
    Chemical Kinetics ------------------------------------------------- Top of Form 1. For the overall hypothetical reaction A + 5B ---> 4C the rate of appearance of C given by may also be expressed as: A. B. C. D. 2. For the reaction 4 NH3(g) + 5 O2(g) ---> 4 NO(g) + 6 H2O(g), the value of -[NH3]/t = 2.6 x 10-3 M/s at a particular time. What is the value of -[O2]/t at the same instant? A. 1.3 x 10-2 M/s B. 2.08 x 10-3 M/s C. 2.6 x 10-3 M/s D. 3.25 x 10-3 M/s E. 520...
    951 Words | 4 Pages
  • An Investigation in to the Rate of Reaction - 935 Words
    An investigation in to the rate of reaction Plan: I am going to investigate the rate of reaction. The reaction I will be using is: Calcium Carbonate + Hydrochloric acid ---- Calcium Chloride + water + carbon dioxide. CaCO3 + 2HCl ---- CaCl +H2O + CO2 Measurements and Variables: The variables I have chosen to change is strength of the hydrochloric acid which will be 1 mole, 0.7 mole, 0.5 mole, 0.3 mole and 0.1 mole some variable I will not be using are temperature, mass, density. The...
    935 Words | 3 Pages
  • Chemistry, Rate of Reaction - 1370 Words
    Factors Affecting Rates of Reaction Thanks to Michelle Craig Manitoba Curriculum Chemistry Grade 12; Kinetics, Topic 3-08 Objectives To design short experiments to investigate and explain qualitatively using collision theory the relationship between reaction rate and temperature, concentration, catalyst, and surface area. Apparatus and Materials Available 3 x 250 mL beakers magnesium ribbon (1 cm) 3 x test tubes magnesium powder test tube rack mossy zinc 10 mL...
    1,370 Words | 7 Pages
  • The Effect of Temperature on Rate of Reaction
    The effect of temperature on a reaction rate In this experiment I shall be investigating how temperature affects the rate of reaction Rates of reaction The Factors that affect the rate of reaction are temperature, surface area, concentration, catalysts, light and pressure Surface area – Surface area is the amount of solid surface that is available for reaction - Only affects solids so this will not affect our...
    1,222 Words | 7 Pages
  • Factor Effecting Reaction Rates
    Abstract We performed two trials of nine different variables of reactions to determine what increases/decreases reaction rates. The variables we used are hot/cold and room temperature water, a equal mixture of HCL and water, A equal mixture of NaOH and water, either a whole, broken, or finely crushed Alka-seltzer tablet. The fastest rate average was at 0.04 s (finely crushed Alka-seltzer with room temp. water). The slowest rate average is 8.02 s (Alka-seltzer with cold water)....
    2,542 Words | 7 Pages
  • The Rate of a Reaction: Chemistry - 1102 Words
    The Rate of a Reaction The area of chemistry that deals with the rate or speed of chemical reactions is known a chemical kinetics. The word “kinetic” is derived from the Greek name kinitikos that means movement or motion. In the present context, the kinetic means the reaction rate or rate of a reaction that is defined as the change in concentration of a reactant or a product with time (M/s). Chemical reaction can be represented by the following general equation. Reactants Products It is very...
    1,102 Words | 5 Pages
  • Rates of Reaction Lab Report
    Demonstration of the Rates of Reaction Between Sulphuric Acid (25mL ±0.5mL) and Magnesium (0.02g ±0.01g) Changing Due to Different Surface Areas By Chania Baldwin Introduction: When sulphuric acid and magnesium are added together, magnesium sulphate and hydrogen gas is created. To create such a reaction the atoms must collide with a sufficient amount of energy. Every reaction requires a different amount of energy to create the reaction, which is called the activation energy; when there is...
    1,940 Words | 8 Pages
  • Factors Effecting Rate of Reaction
    What is meant by ‘rates of reaction’? The rate of reaction or speed of reaction for a reactant or product in a particular reaction is how fast or slow it takes for a reaction to occur. For example, the oxidation of iron is a slow reaction which can take many years, however the combustion of butane in a fire is a reaction that takes place in fractions of a second. Factors effecting rates of reaction Factors can change the rate (or speed) in which a reaction takes place; this can result in...
    1,053 Words | 4 Pages
  • Chemistry - Rates of Reaction Investigation
    Chemistry Coursework – Rates of Reaction Investigation Introduction In this investigation I am going to be investigating the reaction between marble chips and hydrochloric acid, and to see what differences in the rate of this reaction arise when different concentrations of acid are used. Below is the word equation for this reaction: Calcium Carbonate + Hydrochloric Acid = Calcium Chloride + Carbon Dioxide + Water Below is the fully balanced chemical equation for this...
    1,530 Words | 5 Pages
  • effect of concentration on rate of reaction
    Stephanie Chun March 5, 2010 2213-020 Internal Assessment – Investigating the relationship between concentration of reactants and rate of reaction using hydrochloric acid and magnesium strip Research Question To study the effect of manipulating the concentration of hydrochloric acid on the rate of hydrogen gas production during the reaction with magnesium, using the pressure buildup by hydrogen gas. Introduction Concentration and surface area of reactant, temperature, and catalyst...
    1,519 Words | 16 Pages
  • Reaction Order and Rate Laws
    Lab 3: Reaction Order and Rate Laws Name: Student Lab Partners: None Date of Experiment: 16 March 2014 Location: My House Course Number: CHE112 Abstract: When combining compounds, there are always two roles considered in the reaction. These are reactants and products. Reactants are the initial compounds before mixing. The products are synonymous with the term byproduct, or what remains when the reaction occurs. For example, Sodium (Na+) and Chlorine...
    2,460 Words | 11 Pages
  • Chemistry Practical on Rate of Reaction
    Aim: The rate at which a reaction occurs, or takes place, is affected by various factors, such as the temperature at which the experiment is conducted in, the pressure which is given, the surface area which is exposed, use of catalysts, and the concentration. In this investigation, I would be investigating the affect of surface area, or particle size, in the rate at which a reaction occurs. Background Information: The more finely divided the solid is, the faster the reaction happens. A...
    2,392 Words | 7 Pages
  • Reaction Order and Rate Law
    Reaction Order and Rate Law Name Data, Calculations, and Questions A. Calculate the initial and final concentrations as needed to complete Tables 1 and 2. Data Table 1: Varying the Concentration of 1.0 M HCl | | | | |Concentrations | | |# Drops |# Drops |# Drops |Initial...
    459 Words | 3 Pages
  • Investigating Rates of Reaction - 2780 Words
    Rate of Reaction - Sodium Thiosulphate and Hydrochloric Acid Aim Investigation, to find out how the rate of reaction between Sodium Thiosulphate and Hydrochloric acid is affected by changing the concentration. Introduction I must produce a piece of coursework investigating the rate of reaction, and the effect different changes have on them. The rate of reaction is the rate of loss of a reactant or the rate of development of a product during a chemical reaction. It is measured...
    2,780 Words | 10 Pages
  • Determine Rate and Order of a Reaction
    Trial | [FeCl3] (M) | [KI] (M) | Initial rate (sec -1) | 1 | .01 | .01 | .002246 | 2 | .01 | .005 | .001348 | 3 | .005 | .01 | .001627 | 4 | .0075 | .005 | .001126 | 5 | .005 | .0075 | .001267 | Order of Reaction: n=1;m=1 R1/R2=.002246/.001348=k[.01][.01]/k[.01][.005] 1.666172=2n n=1 Rate law Expression: Rate=k[FeCl3][KI] Rate Law constant: Trial 1: .002246=k[.01][.01] k=22.46 Trial 2: k=26.96 Trial 3: k=32.54 Trial 4: k=30.027 Trail 5: k=33.787...
    1,040 Words | 4 Pages
  • Rate of Reaction - Chemistry - 927 Words
    reaction rates and concentration (research paper) By katie prestage what are reaction rates? The rate of reaction is the speed in which a reaction takes place. This can be measured by the rate in which a reactant is used up, or the rate a product is created. If a reaction has a low rate, it means that the particles are combining at a slow speed. If the rate is high, it means that the particles are coming together at a fast speed. For example, the rusting of iron through oxidation has a slow...
    927 Words | 4 Pages
  • The Effect of Concentration on Reaction Rate
     Title of Practical: The Effect of Concentration on Reaction Rate Aim: To use a simple reaction between sodium thiosulphate and hydrochloric acid to discover concentration this determines how fast chemical reactions occur. Independent Variable: Concentration of hydrochloric acid (%) Dependent Variable: Time taken for chemical reaction to take place (sec) Hypothesis: My prediction is that the increased concentration of the thiosulfate will in turn lead to an increase in the rate...
    874 Words | 5 Pages
  • Rates Of reaction- The reaction between limestone and hydrochloric acid
    Aim During this experiment I will be investigating if heating limestone and changing the concentration of the acid will affect the rate of reaction. Preliminary work Before doing our main experiment, we will have to conduct another experiment, to see what concentration of acid we will have to use. We done this using 0.1M, 0.5M and 1M of Hydrochloric acid, and 0.1g of powdered limestone, we used powdered limestone, as it would be a fairer test, I think this as all the particles of limestone...
    880 Words | 5 Pages
  • The Rate of Reaction When Different Concentrations
    Strategy I am investigating how the rate of reaction differs when we change the concentration of Hydrochloric Acid whilst reacting with Magnesium. The rate of reaction is explained by the Collision Theory. This theory explains how various factors affect the reaction rates and how chemical reactions occur. The 4 factors of the Collision Theory are: • Temperature • Concentration • Surface area • Catalyst I am investigating how different concentrations of acids affect the rate of reaction....
    1,912 Words | 5 Pages
  • Total Surface Area and Rate of Reaction
    Antacid tablets are used to relieve heartburn and neutralise stomach acid. Planning Aim To determine how the surface area of the tablets affects the rate of the reaction. To determine which form of tablets gives the biggest surface area resulting in the fastest reaction rate. Investigation question: What is the relationship between the total surface area of the tablets and the rate of the reaction? Hypothesis: The rate of reaction will be the fastest when the tablets crushed into...
    1,020 Words | 4 Pages
  • Affect of Surface Area on Rate of Reaction
    Background Information Surface area will increase the speed of reaction as the greater the surface of the solid reactants, the more particles are required to expose and ‘cover’ the capacity of the solid. Increased surface area results in an increased chance of collisions between reactant particles. Since the collisions become more frequent and abundant, the rate of reaction increases. Aim The aim of the experiment is to see if a greater surface area of a dissolvable tablet creates a faster...
    515 Words | 3 Pages
  • How Temperature Affects Reaction Rate
    Lab Report: How Temperature affects Reaction Rate Aim: The Aim is to investigate how temperature can affect Reaction Rate. The experiment will be performed by heating equally sized and weighted lime stones with equal amounts and concentration of Hydrochloric acid at different temperatures. The temperatures will be 35˚C and 40˚C. We will measure the reaction rates by observing gas release of the reaction between lime stones and Hydrochloric acid. The amount of gas release at...
    988 Words | 4 Pages
  • How the Concentration Affects the Rate of the Reaction
    Title Page Number Diagram of Apparatus Introduction Risk Assessment ` Table of Results Line of Best Fit Graph Error Bars Graph Gradients Graph Analysis • Error Bars Analysis Evaluation • Improvement Assessment • Improved Experiment. • Reliability References Introduction: For this data analysis project, I...
    2,031 Words | 7 Pages
  • Alka-Seltzer Reaction Rates Lab
    Alka-Seltzer Reaction Rates Lab What are the different factors the effect the reaction rate of Alka-Seltzer? Matthew Arkfeld Leah Gilligan Jessie Abbott Period 4 June 2nd, 2008 Background Research: o The objective of the experiment was to determine if different factors affect the reaction rate of Alka-Seltzer. Alka-Seltzer provides fast relief to acid indigestion, upset stomach, heartburn, headaches, body aches and pains. It is an antacid and pain relief medicine used by millions...
    862 Words | 4 Pages
  • Determining Order from Rates of Reactions
     Determining Order from Rates of Reactions AP Chemistry Purpose The focus of this experiment is to recognize that when aqueous solutions of potassium iodate ion (KIO3-) and bisulfite ion (HSO3-) are mixed, a series of reactions will occur, and the final reaction is signaled by the appearance of a dark blue color. My partners and I investigate how the concentration of the reactants affects the rate of reaction. The purpose of this lab is...
    1,187 Words | 7 Pages
  • The Effect of Catalase Concentration on Rate of Reaction
    Abstract The following experiment details the effect of different concentrations of catalase on the production of oxygen and water through the breakdown of Hydrogen Peroxide. In this experiment paper disc where coated in varying concentrations of catalase, 0, 25, 50 75 and 100%. The time taken for the disc to float between two markers on the side of a glass was then recorded. This experiment demonstrates that the higher the concentration of enzyme used the greater the production of oxygen on...
    6,737 Words | 17 Pages
  • Investigating Factors That Affect Rates Of Reaction
    Investigating Factors That Affect Rates Of Reaction Aim: How does the mass of calcium carbonate affect its rate of reaction with hydrochloric acid? Hypothesis: I hypothesize that when the mass of the calcium carbonate increases, the rate of reaction of the calcium carbonate and hydrochloric will also increase. The collision theory states that the more successful collisions there are within the reaction, the faster the rate of reaction. When the mass increases, so does the number of...
    1,805 Words | 8 Pages
  • Chemistry Gcse Coursework Rates of Reaction
    Science Coursework-Rates of Reactions Introduction Investigating how the concentration of sodium-thiosulphate (STS) and hydrochloric acid (HCL) affects the rate of reaction in the experiment. In addition I am also checking how different variables affect my experiment and also how I can make my test more precise, reliable and accurate. Strategy According to my results, as the concentration of STS solution increased the rate of reaction of my experiment was increased. Also as the...
    1,916 Words | 6 Pages
  • The Effect of the Concentration of Sulphuric Acid on the Reaction Rate with Magnesium
    The Effect of the Concentration of Sulphuric Acid on the Reaction Rate with Magnesium Sarah Cain SCH 4UB Mr. Lankin April 1, 2009 Introduction The nature of the problem is to design an investigation that examines a variable affecting the reaction rate. In this experiment, magnesium will be reacted with different concentrations of sulphuric acid. The reaction is shown by the following chemical equation: H2SO4 (l) + Mg (s) → MgSO4 (aq) + H2...
    1,915 Words | 7 Pages
  • How does the concentration affect the rate of a reaction?
     How does the concentration affect the rate of a reaction? 30/1/2012 By Alex Whenman Contents page 1. Introduction to my investigation 2. Background information on concentration 3. What experiment I will be conducting 4. Equipment I will be using 5. How I will be conducting the experiment 6. Heath and safety risk assessment 7. What I think will happen 8. How I will set up my experiment 9. Why I’m...
    756 Words | 3 Pages
  • The Rate of Reaction Between Sodium Thiosulphate and Hydrochloric Acid
    The rate of reaction between sodium thiosulphate and hydrochloric acid Candidate name: Yeo Jin Kim (Kimberly Kim) Candidate number: 000791-021 Teacher: Yitao Duan 1.0 Aim The aim of this experiment is to investigate the changing of concentration effect the rate of reaction between sodium thiosulphate and hydrochloride. 2.1 Chemical Equation 2.0 Raw data 3.2 Qualitative Data 2.1.1 Before the experiment Substance | Color | State | Smell | Hydrochloride (HCl) |...
    1,378 Words | 5 Pages
  • Factors Affecting Reaction Rate Lab Report
     Factors Affecting Reaction Rate Lab Report Objective: To observe and record the different effects of reactants on concentration, surface area, and temperature, on the reaction rates for each. Materials: Refer to the Experiment 18A worksheet Procedure: Refer to the Experiment 18A worksheet Data Table: Mass of 11cm strip of Mg: 0.13g Average mass of 1 cm piece of Mg: 0.0118 Table 1: Effect of Concentration on Reaction Rate Concentration of Acid Reaction Time (s)...
    772 Words | 4 Pages
  • Rate of Reaction of Peroxodisulphate-Iodide Affected by Concentration and Temperature
    Introduction The purpose of this experiment was to determine the rate law graphically from the rate of disappearance and the x y values also the specific rate constant (k). Activation energy was also determined, and the effect of catalyst was evaluated in the reaction between peroxodisulphate ion S2O82-, and iodide ion, I-. S2O82-(aq) + 3 I-(aq) --> 2 SO42-(aq) + I3(aq) The general expression for the rate law, given this overall reaction, is: rate of disappearance of S2O82- =...
    1,532 Words | 5 Pages
  • Measuring Reaction Rate Using Volume of Gas Produced
    Chemistry 12 Formal Report Measuring Reaction Rate using Volume of Gas Produced By John Doe 23th October 2012 Introduction An essential element of chemistry is finding reaction rates. This is because chemists need to know how long a reaction should take. In addition to needing to know the rate of a reaction at any point in time to monitor how the reaction is proceeding. Many factors effect reaction rates, two shown above include temperature and concentration. Concentration affects...
    1,629 Words | 5 Pages
  • Experimental Report of Facrtors Influencing the Rate of a Chemical Reaction.
    Factors Influencing Rate of Reaction Aim To investigate several effects believed to influence rate of reaction, concentration of a substance and temperature, and observe the effects. Hypothesis Concentration and temperature will both increase the rate of reaction in accordance with collision theory. Introduction The reaction rate or rate of reaction for a reactant or product in any given reaction can be defined as the speed with which a reaction occurs. For example, the oxidation of...
    888 Words | 3 Pages
  • Lab 2 Some Factors Affect Reaction Rate
    Bingying Jiang CHM 152ll April 25, 2013 Some Factors that Affect the Rate of a Reaction BACKGROUND: Chemical reactions occur at different rates. In this experiment I will consider some of the key factors that influence the rate of a reaction: * ƒ nature of reactants - particle size * ƒ temperature * ƒ catalysts According to the collision theory, the rate of a reaction depends on the frequency of collisions between reacting particles. The more frequent the collisions, the...
    1,248 Words | 5 Pages
  • how reaction rate varies with sodium thiosulphate
    How reaction rate varies with sodium thiosulphate concentration Background information Sodium thiosulphate and hydrochloric acid are both colourless liquids, when the two reactants are reacted together they produce sulphur. The sulphur that is produced from the reaction changes the solution to yellow and cloudy, this is a precipitation reaction, where a two solutions react and a solid forms in the solution, the solid is said to precipitate out. Some reactions will occur quickly such as...
    2,889 Words | 11 Pages
  • The Effect of Changing the surface area on the Rate of Reaction?
    w The Effect of Changing the surface area on the Rate of Reaction? By : 22/10/2013 The effect of changing the surface area on the rate of reaction? Unit Question: Should we speed things up or slow them down? Hypothesis: According to collision theory, should the surface area increase the amount of collisions increase increasing the rate of reaction. Therefore, my hypothesis is that when the surface...
    859 Words | 8 Pages
  • The Effect of Temperature on the Rate of an Enzyme Catalysed Reaction
    Aim: To find the effect of temperature on enzymes, using a potato as a catalyst. The source of catalase is in the potato cells. 2H2O2 → O2 + H2O Planning: Introduction: An Enzyme is any one of many specialised organic substances, composed of polymers of amino acids, that act as catalysts to regulate the speed of the many chemical reactions involved in the metabolism of living organisms Enzymes are classified into several broad categories, such as hydrolytic, oxidising, and reducing,...
    1,770 Words | 7 Pages
  • How Does the Temperature Affect the Rate of Reaction?
    Biology coursework How does the temperature affect the rate of reaction? Introduction For our experiments, I was investigating what affects the rate of reaction. We used Hydrogen peroxide to test the rate of reaction, with the temperature of this being our variable that we changed. Hydrogen peroxide is a clear, colourless liquid which has various amounts of uses within the laboratory, industrial purposes and even in our households. It is mainly used for cleaning products and hair dye but...
    3,650 Words | 12 Pages
  • The Rate Of Reaction Between marble Chips and Hydrochloric Acid.
    Introduction We are going to do an experiment to see how surface area effects the rate of reaction when added to hydrochloric acid. I will add calcium carbonate (marble chips) to hydrochloric acid. When calcium carbonate is added to hydrochloric acid a reaction takes place. The solution fizzes and gives off the gas carbon dioxide. I will collect this gas in a gas syringe and will time how long it takes for the reaction to produce 100cm3 of carbon dioxide. CaCO3 +2HCL Co2 +CaCl2 +H2O...
    1,391 Words | 8 Pages
  • Reaction (rate) between magnesium ribbon and hydrochloric acid
    Aim It is to tell how the reaction between magnesium and hydrochloric acid will be effected if we change the concentration of hydrochloric acid. Introduction In the experiment the magnesium reacts with the hydrochloric acid to create magnesium chloride and hydrogen. The balanced formula for this is: Mg(s) + 2HCL(aq) MgCl2(aq) + H2(g) Magnesium + hydrochloric acid Magnesium Chloride + Hydrogen Magnesium will react with hydrochloric acid, because it is higher in the reactivity series than...
    2,281 Words | 9 Pages
  • Chemistry Rates of Reaction Coursework: Sodium Thiosulphate and Hydrochloric Acid
    An investigation to show how the rate of reaction between hydrochloric acid and sodium thiosulphate is affected by the concentration of the acid Simple Procedure Place a conical flask on a piece of paper with a cross on it. Add hydrochloric acid and sodium thiosulphate, and record the amount of time taken for the cross to disappear through the solution from the top of the flask. Record this time and repeat this for different concentrations of hydrochloric acid. Fair Test The variables in...
    1,036 Words | 5 Pages
  • Marble chip investigation - rates of reaction, studying the effects of change in concentration of the acid
    Marble Chip Investigation Method 1.Set up the equipment as diagram shows. The measuring cylinder must be filled with water and then inverted into the tub. 2.Measure the quantity of hydrochloric acid and marble chips to the decided amount. Add water to the acid to change the concentration to what you need. 3.Take note of the amount of water in the measuring cylinder. 4.Put the marble chips and hydrochloric acid into the conical flask. Replace the bung and start the stopwatch. 5.Once the...
    1,754 Words | 8 Pages
  • An Investigation Into the Factors Affecting the Rate of the Reaction Between Calcium Carbonate and Hydrochloric Acid
    An Investigation into the Factors Affecting the Rate of the Reaction between Calcium Carbonate and Hydrochloric Acid A chemical reaction is the process by which atoms or groups of atoms are redistributed, resulting in a change in the molecular composition of substances. The reaction rate is how quickly a reaction occurs and this can be affected by four different factors: ¡¤ changing the surface area of any solids involved ¡¤ changing the concentration of reactants in solution ¡¤ changing...
    2,478 Words | 7 Pages
  • To Investigate How Does the Concentration of Hydrochloric Acid Affect the Rate of Reaction?
    To investigate how does the concentration of Hydrochloric acid affect the rate of reaction? Outline I aim to discover how different concentrations of Hydrochloric acid influence the rates of reaction. In order to carry out this investigation I have decided to use marble chips, which I will vary the sizes as powder, small chips and large chips. I will also be changing the concentration, the different concentrations are as follows 0.2m, 0.5m, 1m, 1.5, 2m. I have chosen these concentrations as...
    1,775 Words | 7 Pages
  • nvestigating The Rate Of Reaction Between Marble Chips And Hydrochloric Acid
    Investigating The Rate Of Reaction Between Marble Chips And Hydrochloric Acid Planning I will use marble chips and different concentrations of hydrochloric acid and water to see how it affects the rate of reaction. I will use concentrations of 50cm3 using different volumes of water and acid. Introduction I am investigating how the rate of reaction between marble chips and hydrochloric acid is altered when the concentration is changed. This is the word equation for my...
    1,195 Words | 7 Pages
  • To Observe the Effect of Temperature on the Rate of the Iodine Clock Reaction Using Ammonium Persulfate
    Aim: To observe the effect of temperature on the rate of the iodine clock reaction using ammonium persulfate Assessment criteria: Design Variables: Table 1.1: List of dependent and independent variables. S.No | Dependent variables | Independent variables | Controlled variables | 1. | Rate of reaction | Temperature | Concentration | 2. | - | - | Pressure | 3. | - | - | Volume | Hypothesis: The iodine...
    665 Words | 4 Pages
  • How Does the Concentration of the Sodium Thiosulfate Affect the Rate of Reaction to Hydrochloric Acid?
    Investigation How does the concentration of the sodium thiosulfate affect the rate of reaction to hydrochloric acid? contents page 1: contents, aim, prediction, equation, diagram page 2: equipment, preliminary experiments page 3: page 4: page 5: page 6: page 7: page 8: Aim: In my investigation I am trying to find out how the rate of reaction between sodium thiosulfate and hydrochloric acid gets affected but the concentration of the thiosulfate. Prediction: My...
    3,108 Words | 10 Pages
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