For my experiment I am finding out the effects on the reaction rate when magnesium is put into different concentrations of hydrochloric acid.
Chemistry coursework: Rate of reaction Introduction My investigation is about reaction rates and finding out what affects them and the correlation between reaction rates and the factors which affect them. Therefore in my experimentation I tried to find out the effects of concentration (the amount of a specific substance in a certain volume of space) on reaction rate. Rate of reaction is the rate or speed at which the chemical reaction (a reaction that changes one set of chemicals to another) takes place. For my experiment I am finding out the effects on the reaction rate when magnesium is put into different concentrations of hydrochloric acid. 2HCL (aq) + Mg (s) MgCl2 (aq) + H2 (g) Hydrochloric acid (HCl) Hydrochloric acid, also known as spirits of salt or muriatic acid is a solution of chlorine and hydrogen. It is a highly corrosive, strong mineral acid which has many uses in industries. It is a clear liquid so if it gets on your skin you will not notice it which means that it would start burning your skin and could get onto food as well. Therefore always wash your hands after handling hydrochloric acid. Collision theory Collision theory is simply understood as the higher the concentration of the reactants, the higher the reaction rate. The more reactants there are the more successful collisions there will be. This theory
Rates of Reaction
Introduction In this investigation I am investigating the reaction between hydrochloric acid and calcium carbonate (known as limestone). The rate of reaction is basically the speed a reaction takes place- meaning how long it occurs for. Chemical reactions only occur when reacting particles collide with each other with sufficient energy to react. The minimum amount of energy that causes them to react is called the activation energy - simply because it activates the reaction. There are many variables that need to be taken under consideration when measuring the rate of reaction. These can include catalysts, surface area, temperature or concentration of the liquid. In this case the dependant variable is the concentration of the liquid. These variables can either decrease or increase the rate of reaction. Theoretical Background When a reaction takes place it has to overcome a minimum energy barrier known as the Activation Energy. If the particles collide with less energy than the activation energy then nothing worth noting happens. "You won't get a reaction unless the particles collide with a certain minimum energy called the activation energy of the reaction." (Taken from www.chemguide.co.uk). Only those collisions, which have energies equal to or greater than the activation energy result in a reaction taking place. The reason why collisions have to overcome the
In this project I am going to investigate rates of reaction of an indigestion tablet when added to hydrochloric acid. The variable I am going to use will be the temperature of the acid.
Introduction In this project I am going to investigate rates of reaction of an indigestion tablet when added to hydrochloric acid. The variable I am going to use will be the temperature of the acid. (All background knowledge used in this project was taken from previous experience - notes and experiments from work done in year nine) What are rates of reaction? The rate of a reaction is the speed at which a reactant is turned into the product. Chemical reactions can take place at very different rates (eg. explosions, rock formations). A rate is measured as: A change in something (eg. loss of mass/mass of gas given off) Divided by The time it takes to change/disappear Rates of reactions can be measured in two different ways: * How fast reactants disappear * * How fast products appear Many factors affect rates of reaction: * Surface area The greater the surface area of a solid, the greater the area of the particles that is exposed and likely to collide with other particles, meaning more successful collisions can take place per second. Therefore reaction between acid and a finely powdered salt will take place faster than a reaction between the same acid and a lump of salt. * Concentration of solutions The rate of a reaction increases as the concentration of the solution increases. This is because there are more solute particles to collide with a fixed volume
Marble Chips and Hydrochloric Acid.
Marble Chips and Hydrochloric Acid PLANNING AIM To find if changing the concentration of an acid will increase or decrease the rate of the reaction when marble is dissolved in hydrochloric acid. With the equation CaCO3 + 2HCl CaCl2 +H2O + CO2 HYPOTHESES A reaction occurs when particles collide. This process is based on random particle movement. So therefore, the more particles you have in a space, the more likely they are to collide. Therefore making the reaction accelerate. This theory can be proved if you compare the rates of reaction with marble in hydrochloric acid. 'If the acid is of a higher concentration, the reaction will be quicker.' Also if the particles have more energy, they will be travelling faster, making them collide more frequently. PREDICTION When the concentration of acid increases, more gas will be given off faster. I know this from my trial experiments. METHOD Since I will be working with strong acid, I will wear safety goggles while conducting the experiment. I will use Marble chips all of a small size. I can use a sieve to make sure they are all roughly similar size- about 7mm diameter. The amount of acid I have decided on is 10ml. And so the amount of marble must be in excess - 3g. I can measure the speed of the reaction by how much gas is given off. I can measure this in cm3 in a gas syringe. when the experiment takes place, I will take
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The Effect of Concentration on the Rate of Reaction between Magnesium [Mg] and Hydrochloric acid [Hcl]
The Effect of Concentration on the Rate of Reaction between Magnesium [Mg] and Hydrochloric acid [Hcl] By Mohammed Thamid Azad Candidate Number- 5021 Centre Number- 13317 Rates of Reaction INTRODUCTION - This coursework will be investigating the effect of concentration on the rate of reaction between a metal-Magnesium [Mg] and Hydrochloric Acid [HCL]. Rate of reaction is the measurement of how quickly a reaction is progressing. It also includes how much products are being formed and what portion is being used up. Rate of reaction just means 'the speed of the reaction'. It is measured by the rate of formation of a product. When you are doing an experiment in order to make a product you should know how long the reaction takes to complete, before the product is produced. This coursework will be experimenting the reaction speed of Magnesium Metal with Hydrochloric acid. I will be observing 'the rate of reaction between Magnesium and Hydrochloric acid to measure how long a solution takes to react within different level of concentrations. 'In the experiments it is predicted that the reactions are not at a steady rate, meaning that they begin at a curtain speed then decrease until they stop which then decreases the concentration of reactants. AIM- To investigate the effect of concentration of acid on rate of reaction Mg(s) +2HCl (aq) --> MgCl2(aq) +H2(g)
The Effect of Concentration on the Rate of Reaction between Hydrochloric Acid and Calcium Carbonate (marble) Chips.
CONTENTS PAGE PLANNING 2 INTRODUCTION 2 BACKGROUND KNOWLEDGE 2 The collision theory 2 Diagrams to show the particles reacting in a high concentration level and a low concentration level of hydrochloric acid 3 PREDICTION 5 THE EXPERIMENT 5 The outline of the plan 5 Measurments 6 Fair Test 6 Apparatus 7 Diagram to show the setup of appartus 7 Safety 7 Method 8 OBTAINING EVIDENCE 9 INTRODUCTION 9 Results Table 9 Tables to show the results obtained from the effects of different concentrations on marble chips on the varied rates of reaction. 9 Table of results to show the set of averages processed from each experiments concentration results. 10 Graph - Showing the rate of reaction from differnet concentrations 10 ANALYSING AND CONSIDERING EVIDENCE 11 The Effect of Concentration on the Rate of Reaction between Hydrochloric Acid and Calcium Carbonate (marble) Chips Planning Introduction This investigation is to obtain a set of reliable results and a strong conclusion, of the effects from different hydrochloric acid concentrations, reacting on small calcium carbonate chips; measuring the rate of reaction of which carbon dioxide is produced as a product. My primary aim is to find the change in reaction rate when the concentration is increased. Below is a balanced word and symbol equation of this reaction and its products, between hydrochloric acid and calcium
Rate of Reaction Chemistry Coursework
The effect of temperature on rate of reaction Introduction Our investigation in rate of reaction involved us performing an experiment which involved us chemically reacting hydrochloric acid and magnesium. Different reactants cause different speeds and chemical reactions can vary from a small reaction to a large reaction. Reactions occur when particles of reactants collide together and react. The chemical reaction that we will be performing is: Magnesium+ Hydrochloric Acid› Magnesium Chloride+ Hydrogen Through this reaction I will be measuring the amount of hydrogen that is produced. I will have to choose certain apparatus and a certain method which I will test in preliminary and then perform in my method. Preliminary Investigations Variables Temperature- The higher the temperature, the faster the rate of reaction. This happens because at higher temperatures the particles have more energy meaning that they collide more with each other because the particles are moving around quicker. If you imagine a box of balls, if the balls have more energy they are moving faster and are more likely to bump into each other than balls with less energy and are moving slower. We can measure temperature in our experiment by heating the hydrochloric acid at different temperatures and measuring how much hydrogen is produced. This is the variable I will be changing and is going to be the
In this investigation we are going to measure the rate of reaction of marble and HCl when the concentration or surface area of marble is changed.
Chemistry Coursework-Investigation on the rate of reaction between HCl (Hydrochloric acid) and Marble (Calcium Carbonate - CaCO3) Aim: In this investigation we are going to measure the rate of reaction of marble and HCl when the concentration or surface area of marble is changed. Introduction: A rate of reaction is the speed at which reactants become an end product. For a reaction to happen, the particles that are reacting have to collide. If they collide, with enough energy and pressure, then they will react. There are several factors that affect the rate of reaction. Firstly temperature will affect the rate of reaction; if the temperature is cold the particles will move more slowly, with less energy resulting in a slower reaction. However in a hot temperature the particles move more quickly, they collide more with more energy, creating a faster rate of reaction. Secondly concentration will affect it, the lower the concentration the more spread out the particles, so they will collide less and create a slower rate of reaction. Thirdly using a catalyst can be used to speed up a reaction, without it being changed. The factor that we will be investigating is the size and surface area, large particles have a small surface area so there are less particles exposed for collision, which means a slower reaction. However small particles have larger surface area and have faster
Investigation of the rate of reaction between Magnesium and Hydrochloric acid
Investigation of the rate of reaction between Magnesium and Hydrochloric acid By Hashim Al-Hasani 11R Introduction Chemical reactions occur when reactant particles collide with each other, Collision Theory If particles collide with less energy than the activation energy, they will not react. The particles would just crash into each other. The more regularly particles collide, and the greater the number of collisions with right amount of energy, the faster the rate (speed) of reaction. In this investigation I will be investigating the rate of reaction between a metal and acid. The rate of reaction is affected by numerous factors; these factors are: * Temperature * Surface area * Concentration * Use of Catalyst Temperature Temperature affects the rate of reaction because heat affects the movement of the particles; the higher the temperature, the faster the movement of the particles, therefore the faster the reaction. Surface Area Surface Area affects the rate of reaction because the bigger the area for the particles to react, more collisions occur, meaning the rate of reaction is greater. Concentration Concentration affects the rate of reaction because an increase in concentration means more particles to react with each other - therefore increasing the successful collisions between the particles and resulting in a higher rate of reaction. Use of Catalyst A
How dose temperature affect the rate of reaction between magnesium and hydrochloric acid.
Teaching group: Priestly Subject: Chemistry Teacher: Mr M Bownass Tutor group: 10 C How dose temperature affect the rate of reaction between magnesium and hydrochloric acid. Method Aim The aim of this experiment is to find out what factors effect the rate of reaction. Also to test the theory of Maxwell and Batsman. I will investigate how temperature effect the rate of reaction but other factors that affect it will to have to be taken into account. Equation The reaction will be between the magnesium and hydrochloric acid. Below are the word and symbol equations of this reaction. magnesium + hydrochloric acid --> magnesium chloride + hydrogen Mg + HCl --> MgCl + H Preliminary Work Before staring to plan or even attempt my investigation their were three problems that needed solving. Without this my experiment would not be as fair as it with suitable solutions. The problems that I have found did not come in any set order, I will start with the easiest. This is the fact that magnesium floats in hydrochloric acid. This means that much as half of its surface area will not be in contact with the water. I have seen magnesium react before and I know that it will react quite vigaressly and this will make it move around a lot so the area of contact will change all the time. This is one of the factors that determine the rate of reaction so if it will not be constant than
