My aim for this experiment is to find out how concentration affects the rate of reaction, when marble chips reacts with hydrochloric acid. :: GCSE Chemistry Coursework Investigation

My aim for this experiment is to find out how concentration affects the rate of reaction, when marble chips reacts with hydrochloric acid. Mansoor Khan An investigation to see how concentration affects the 1 rate of reaction. Introduction My aim for this experiment is to find out how concentration affects the rate of reaction, when marble chips reacts with hydrochloric acid. I am going to use calcium carbonate (marble chips) to react with hydrochloric acid that will produce carbon dioxide gas. The equation for this reaction is: Word equation: Calcium Carbonate + Hydrochloric acid Calcium Chloride + Carbon Dioxide + Water Symbol equation: CaCO 2HCl CaCl CO H O For my experiment, I will be experimenting on different concentrations of acid on marble chips. The other variables that I could have chosen for this particular experiment are: Temperature- I thought about choosing this variable but was put off by the difficulty of control the temperature. Surface area- I have not choose this because I did not like the fact that there were only three different sizes of marble chips, when I needed five results, and also it requires quite a long preliminary experiment to find the right concentration of acid. Prediction I predict that if a high concentration of acid is used, the reaction will be faster and thus resulting in more carbon dioxide being produced as gas. The weaker the concentration of acid, the slower the reaction and the less amount of carbon dioxide gas that will be produced. The collision theory states that if particles in a solution have enough energy to break free from their existing bonds to form new bonds they will, the amount of energy needed to form new bonds is called the activation energy. So if you increase the amount of particles in a solution they will be more collisions. The collision theory also says that if the particles are constantly moving and colliding with each other, when one particle collides with another, energy is transferred between these particles and so energy is constantly gained or lost. The number of collisions with enough energy greater or equal to the activation energy, determines the rate of reaction. I predict that the 2 molar of hydrochloric acid when reacting with marble chips will produce the most carbon dioxide and in the least amount of time, because they are more reactants in the solution and more particles that will collide with the reacting particles. Also because this is the most concentrated solution that I am experimenting on there are more reacting particles of colliding about in the solution this means that the will be more collisions between the reacting particles which is likely to cause a reaction, these reacting My aim for this experiment is to find out how concentration affects the rate of reaction, when marble chips reacts with hydrochloric acid. :: GCSE Chemistry Coursework Investigation My aim for this experiment is to find out how concentration affects the rate of reaction, when marble chips reacts with hydrochloric acid. Mansoor Khan An investigation to see how concentration affects the 1 rate of reaction. Introduction My aim for this experiment is to find out how concentration affects the rate of reaction, when marble chips reacts with hydrochloric acid. I am going to use calcium carbonate (marble chips) to react with hydrochloric acid that will produce carbon dioxide gas. The equation for this reaction is: Word equation: Calcium Carbonate + Hydrochloric acid Calcium Chloride + Carbon Dioxide + Water Symbol equation: CaCO 2HCl CaCl CO H O For my experiment, I will be experimenting on different concentrations of acid on marble chips. The other variables that I could have chosen for this particular experiment are: Temperature- I thought about choosing this variable but was put off by the difficulty of control the temperature. Surface area- I have not choose this because I did not like the fact that there were only three different sizes of marble chips, when I needed five results, and also it requires quite a long preliminary experiment to find the right concentration of acid. Prediction I predict that if a high concentration of acid is used, the reaction will be faster and thus resulting in more carbon dioxide being produced as gas. The weaker the concentration of acid, the slower the reaction and the less amount of carbon dioxide gas that will be produced. The collision theory states that if particles in a solution have enough energy to break free from their existing bonds to form new bonds they will, the amount of energy needed to form new bonds is called the activation energy. So if you increase the amount of particles in a solution they will be more collisions. The collision theory also says that if the particles are constantly moving and colliding with each other, when one particle collides with another, energy is transferred between these particles and so energy is constantly gained or lost. The number of collisions with enough energy greater or equal to the activation energy, determines the rate of reaction. I predict that the 2 molar of hydrochloric acid when reacting with marble chips will produce the most carbon dioxide and in the least amount of time, because they are more reactants in the solution and more particles that will collide with the reacting particles. Also because this is the most concentrated solution that I am experimenting on there are more reacting particles of colliding about in the solution this means that the will be more collisions between the reacting particles which is likely to cause a reaction, these reacting