Investigation: How does the concentration of acid affect the rate of reaction? :: GCSE Chemistry Coursework Investigation

Investigation How does the concentration of acid affect the rank of reaction?The aim of this investigation is to test how concentration affects the charge per unit of reaction.My prognostic for my investigation is that the higher(prenominal) theconcentration, the faster the reaction depart be.My reason quarter my prediction is The higher the concentration, the more particles there atomic number 18 which allow for clash with enough energy to overcome activation energy, whichis explained as the collision theory. impact theory explains how chemical reactions occur and why ratesof reaction differ. For a reaction to occur, particles must collide.If the collision causes a chemical change it is referred to as afruitful collision. For a reaction to occur, the reactant particlesmust collide. Only a certain fraction of the total collisions causechemical change these atomic number 18 called successful collisions. Thesuccessful collisions have activation energy at the trice of impactt o break existing bonds and form new bonds, resulting in the productsof the reaction. increase the concentration of the reactants andraising the temperature bring about more collisions and therefore moresuccessful collisions, increasing the rate of reaction.When a catalyst undergoes collision with the reactant molecules, slightenergy is required for the chemical change to take place, and hencemore collisions have sufficient energy for reaction to occur,therefore the reaction rate increases.The four factors that influence the rate of reaction and therefore theexperiment are1. The temperature. This is because if the concentration is warmer, then the reaction rate may increase or decrease depending on temperature.2. The Catalyst. This is because if the catalyst is of a larger volume or size than the concentration then it may have an affect on the concentration and experiment that will differentiate results.3. The concentration. This is a variable that will be used because we are trying to find if the concentration will affect the rate of reaction.4. The surface area. This is because if the surface areas of the calcium carbonate pieces are different then it will affect the results also because it will take a shit off more gas, the greater the surface area.To achieve the most unblemished of results possible I will use allsufficient equipment and data.For my prediction, that the higher the concentration, the faster thereaction rate, I will use pre-test results to help with my paygradebefore I start my investigation.Before I started my investigation, I did a pre-test experiment thathelped me to reach my prediction.