Investigating the factors that affect the rate of reaction between Calcium Carbonate and Acid
Laura Skevington Investigating the factors that affect the rate of reaction between Calcium Carbonate and Acid Aim The aim of my experiment is to see how, and if changing the mass of the Calcium Carbonate affects the rate that Carbon dioxide gas is given off when Hydrochloric Acid is added. Prediction I think that if we increase the mass of the Calcium Carbonate the rate of reaction will speed up. There is greater mass and more surface area so collision between Calcium Carbonate particles and Hydrochloric acid particles is a lot more likely to happen and at a faster rate so more Carbon Dioxide gas will be produced. Scientific Theory behind my prediction - The Collision Theory Picture 1 Picture 2 The Collision Theory can be explained in terms of increasing the number of Collisions between atoms every second. In picture 1 there are 4 atoms of Calcium Carbonate and 10 atoms of hydrochloric acid. The atoms collide with each other and give off Carbon Dioxide gas. The amount of Calcium Carbonate is increased to 8 atoms (Picture 2) and the amount of Hydrochloric acid stays the same. As there are more atoms of Calcium Carbonate so there are more atoms for the Hydrochloric Acid to collide with, this makes collision between atoms more frequent and as a result of this more Carbon Dioxide gas will be given off at the end of my
Investigation- To investigate the factors involved in the following reaction:Na2S2O3(aq) + 2HCl(aq) 2NaCl(aq) + H2O(l) + SO2(aq) + S(s)
Caroline Earp Investigation- To investigate the factors involved in the following reaction: Na2S2O3(aq) + 2HCl(aq) --> 2NaCl(aq) + H2O(l) + SO2(aq) + S(s) PLANNING STAGE Variables: The following are variables which will affect my investigation. Temperature, Pressure, Concentration of Na2S2O3, Concentration of HCl, Stirring. The key variables which I'm going to investigate are Concentration of Na2S2O3 and Concentration of HCl. What I'm going to find out: I'm going to find out what effect varying the above stated variables has on the rate at which the reaction between Na2S2O3 and HCl takes place. What I expect to happen: I predict that when I double the concentration of the Na2S2O3, the rate of reaction will double. The relationship will be directly proportional and the graph that I will get will be a straight line thought the origin. The origin will be a point on the graph since if there is no Na2S2O3 then there will be no reaction. The relationship will only be directly proportional up to a certain point, when the rate will level off and increasing the concentration further will have no added effect. I predict that when I double the concentration of the HCl, the rate of reaction will double. Again the relationship will be directly proportional, and the graph a straight line through the origin. If there was no HCl then there would be no reaction and so the origin is
Water and Ice- To determine the specific heat capacity of water (a) and the specific latent heat of fusion of water (b).
Physics Full Lab Report (1) Title: (B3) Water and Ice- To determine the specific heat capacity of water (a) and the specific latent heat of fusion of water (b). Date: 25 October 2004 Aim: To determine the specific heat capacity of water through electrical method and to determine the specific latent heat of fusion of water using the method of mixture. In the end, the seriousness of heat loss from the heating curve of water by a heater is to be judged. Experiment (a): To determine the specific heat capacity of water Principle: Specific heat capacity of a substance is defined as E= mc?T, where the energy E depends on the mass m of the object and the temperature change?T. For determination, a calorimeter, which consists of an aluminum calorimeter placed inside an insulating jacket made polystyrene, is used. A certain amount of water is added inside the calorimeter and heated with a heating coil connected to a circuit with power supply. The electrical energy converted to heat can be calculated by E=VIt......(i), where t is the time elapsed during the power supply on. The resulting energy is shared by both the calorimeter and the water. Therefore, we have E=Ew+Ec= mwcw?T+ mccc?T......(ii). Since the specific heat capacity of aluminum is given, determination of that of water can be finally found. Procedure: . The aluminum calorimeter and the aluminum stirrer was taken
The rate of reaction between Sodium Thiosulphate and hydrochloric acid
Chemistry investigation the rate of reaction between Sodium Thiosulphate and hydrochloric acid The question I am going to investigate is how the level of concentration would affect the rate of reaction. I am going to do this by diluting sodium disulphate with hydrochloric acid and time it at every step. Because I would want to see how the concentration affects the rate of reaction. Sodium Thiosulphate + Hydrochloric Acid --> Sodium Chloride + Sulphur Dioxide + water + Sulphur Na2S2O3+ 2HCl --> 2NaCl + SO2+ H2O + S Equipment Three different sized Beakers for hydrochloric acid, sodium Thiosulphate Two measuring cylinders to measure solutions Two pipettes to obtain the correct volume of hydrochloric acid and sodium Thiosulphate A stop clock used to time the reaction. One conical flask used as a reaction the container in which the reactants were added together and the reaction allowed to progress This equipment will help me more accurate, reliable results. The variable I have chosen to investigate are: • Input sodium thiosulphalte concentration • Output reaction I predict that the more the concentration the faster the chemical reaction. The scientific reason for my predication is the more the concentration the quicker the reaction. Also if we increased the amount of Sodium Thiosulphate in the solution, the rate of reaction might increase. If there is a
An investigation into how the concentration of sodium thiosulphate solution affects the rate of its reaction with hydrochloric acid.
Sam Miranda S5A An investigation into how the concentration of sodium thiosulphate solution affects the rate of its reaction with hydrochloric acid. Aim; The aim of this investigation is to see how the concentrations of reactants effect the rate at which a reaction occurs. The reaction between Sodium Thiosulphate and hydrochloric acid can be used to investigate how the concentration of reactants used can effect the rate at which a reaction occurs. When the two chemicals react, they form a yellow precipitate turning a transparent solution into an opaque one. By using a beaker with a marked piece of paper positioned underneath it we can react the two chemicals of different concentrations and time the duration of the reaction. The pattern (in this case a cross) will disappear after a specific quantity of Sulphur suspension has formed. A chemical reaction occurs when two-reactant particles collide with sufficient energy, facing each other in the correct direction. There is always a transfer of energy and a new product formed. There is some times a change in the appearance of the new product. Adjusting several factors can increase the rate of a reaction. These include; - Concentration If we consider a reaction occurring in a solution the greater the concentration is the greater number of reactant particles are present or available. Therefore increasing the concentration
An experiment to investigate the factors that determine the amount of energy released when alcohols are burned.
Chemistry SC1 An experiment to investigate the factors that determine the amount of energy released when alcohols are burned By Khalid Attia Planning Statement of Problem In this investigation, I will be investigating all of the factors that determine the amount of energy released when any given alcohol is burnt. Input Variables In this investigation, there are many different variables that will affect the amount of energy produced when alcohols are burnt. These variables are called the Input Variables and they are the following: ) Number of Carbon atoms present (type of alcohol) 2) Concentration of alcohol (purity) 3) Amount of alcohol (volume or mass) 4) Oxygen supply (for combustion) Each of these variables will affect the amount of energy produced when an alcohol is burnt in similar ways but some variables have a larger affect than others, therefore choosing the right one is essential. If the number of carbon atoms in the alcohol is increased, its molecular structure will be larger. This can be seen from this general equation - CnH2n+1OH. When combustion is complete, carbon dioxide and water are formed, therefore if there are more carbon atoms, there will be more carbon dioxide and water produced, this will require a large amount of energy to make the bonds in these compounds. Therefore if more carbon atoms are present in the alcohol, more energy will
Aim: To investigate how the concentration of sodium thiosulphate affects the rate of reaction.
By Alexander Claire 11A Investigate the effect of concentration on the rate of a chemical reaction Aim: To investigate how the concentration of sodium thiosulphate affects the rate of reaction. Worded equation for reaction: sodium thiosulphate + hydrochloric acid. Symbol equation for reaction: This is the symbol equation for sodium thiosulphate + hydrochloric acid ---> 2HCL+Na2S03. In the reaction the solution will go cloudy because sulphur is given off. We also tested out to see weather the concentration affects the rate, this makes the solution turns cloudy. Apparatus * Thermometer * Beaker * Burette * Paper with X on it * Timer * Flask * Measuring cylinder How the reaction will be monitored: There are four ways in which you can monitor the methods: . Collecting and measuring a gas product - record the volume at regular intervals, such as every 30 or 60 seconds. 2. Measuring the loss of mass as a gas forms - record the mass at regular intervals such as every 30 to 60 seconds. 3. Timing how long it takes for a small amount of solid reactant to disappear - mix the solid and liquid in the flask and start the timer. Stop it when you can no longer see any solid. 4. Timing how long it takes for a solution to turn cloudy - this is for the reactions that produce an insoluble solid. Mix the liquids in flask and start the timer. Stop it
Our task is to investigate the rate of reaction between an acid and a carbonate.
Chemistry Investigation- Andy Lawson Introduction Our task is to investigate the rate of reaction between an acid and a carbonate. Acid + Carbonate => Salt + Water + Carbon Dioxide Hydrochloric acid + Calcium Carbonate => Calcium Chloride + Water + Carbon Dioxide (2HCl + CaCO3 => CaCl2 + H2O + CO2) There are different variables which affect the rate of the reaction, these variables are: Concentration of acid Temperature Surface Area Catalysts Stirring Volume of Acid Pressure Each variable affects the reaction in different ways. Concentration of acid The concentration of acid effects the rate of reaction due to the differing amounts of acidic atoms in the concentration, the more atoms there are to bang into each other, the faster the rate of reaction should be. This is a simple experiment to do and one which I can complete with the facilities available to me. Temperature The temperature will effect the reaction due to the varying amounts of energy contained within the atoms as a result of the surrounding heat energy, this causes the atoms to bang into each other more or less and therefore the rate of reaction is affected. This is a more complex experiment than the concentration of acid, but I could carry it out with the facilities available to me. Stirring Stirring the reaction then the atoms move around more and bang into each other more, thus speeding up
Investigate 'How much gas is released when a metal reacts with an acid.'
Chemistry Coursework Planning In my experiment, I am going to investigate 'How much gas is released when a metal reacts with an acid.' When I do the experiment, there will be many hazards that I will have to face and control so that there are no dangers to others or myself. First, I will have to wear my laboratory coat and safety glasses, as this is a compulsory obligation that must be undertaken in order to decrease the amount of accidents that can happen to the skin and eyes. I will have to be careful when handling the acid as acid is an irritant and can therefore cause injury easily, if spilt on someone's hand, for example. In order to keep the number of injuries to a minimum I will not carry acid around the classroom and I will make sure that any container holding acid is nowhere near the edge of a table or somewhere that it can be knocked off. If I do spill some of the acid I will alert the teacher to make sure that it is safe for me to clean it up. As well as this, I will have to be careful when using glass products, which will be quite frequent in this experiment. Glass can very easily be broken and can cause people to cut themselves quite deeply and if it gets into the eyes, it can cause blindness, in extreme cases. In order to keep the breaking of class to a bare minimum I will make sure that my hands are dry when carrying it so that it does not slip out of
Look at two variables that affect at the speed of the reactions between Marble Chips (CaCO3) and Hydrochloric Acid (HCl).
In this piece of coursework I am going to look at two variables that affect at the speed of the reactions between Marble Chips (CaCO3) and Hydrochloric Acid (HCl). I will use four different states of division of the marble chips. These will be: * Large chips * Medium chips * Small chips * Powder I will also vary the concentration of my Hydrochloric acid. * 2.5 Molar * 2.0 Molar * 1.5 Molar * 1.0 Molar * 0.5 Molar In any reaction a solid is needed, our solid is Marble Chips. EQUIPTMENT: * Beakers (250ml) * Measuring cylinder (50cm3) * Bungs * Thermometer (00C-110oC) * Electronic Scales (0.00g) * Weighing boats * Boiling tubes (50cm3) * Marble chips (Small, Medium and Large) * Hydrochloric acid (2.5 - 0.5 Molar) From this reaction, Carbon Dioxide is produced, and it is the collection of this gas that will measure the reaction for us. I predict that, " the more concentrated the acid, the quicker the reaction will be." Also " the larger the chips, the longer the reaction will take." I think this because 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
