Investigating The Affect of Concentration on The Rate of Reaction :: GCSE Chemistry Coursework Investigation

Investigating The Affect of engrossment on The Rate of ReactionAim- To find out if changing the assimilation of the hydrochloric point affects the volume of gas released in 5 minutes.Background t all(prenominal)ingThe mark of reaction depends on four things-1. Temperature2. Concentration3. Catalyst4. size of pull up stakesicles/surface areaThe Collision TheoryThe conflict theory explains the pass judgment of reaction, the rate ofreaction depends on how often and how surd the reacting particlescollide with each former(a). The basic theory is that particles oblige tocollide with each other in order to react, alone it is not that simple,as it also depends on how hard the particles collide. If the particlesdo not collide hard enough then they leave not react, they go forth simplyjust hit each other and bounce off.This heart and soul that even if I am not investigating the rate of reactionwhen the temperature is changed, it will still have a big part to playin my experiment. If the temperature is different in the classroomwhen I do each concentration of acid it may have a large impact on myresults. To help keep my results as accurate as possible I could takethe temperature of the room ahead I do each experiment.If the temperature in the room is below 20 C the particles will stillbe moving, but very slowly. This would cause the react to be veryslow. At temperatures above 20 C the particles will be moving at aregular speed.Low Concentration superior ConcentrationActivation EnergyActivation energy is the energy mandatory to start a reaction. Eachmolecule has a certain gist of energy, when molecules collide theyhave to collide with to a greater extent energy than they already have in order toreact this is called a successful collision. If the molecules collidebut do not create enough energy this is an unsuccessful collision andthe molecules do not react.I am going to focus on the concentration. If the concentration of thehydrochloric acid is increased, then so will the number of collisions.If the acid is more concentrated it means that there will be moreparticles in the same size space compared to a diluted acid, thismeans collisions will be more likely and more frequent as theparticles are closed together.Apparatus I Will strike- Conicle flaskful Glass syringe Bung Delivery tube Marble chips(5 grams) Hydrochloric acid(50 cm ) Stop clockOther Apparatus that I May Need- Stand (to hold up gas syringe) Thermometer (to take the temperature of the room before do each concentration.) Weighing scales (to weigh out marble chips). ruleI am going to change the concentration of the hydrochloric acid to