Reaction Rate Investigation :: GCSE Chemistry Coursework Investigation

Reaction Rate InvestigationPlanningI am trying to call on out the rate of reaction between marble chips(calcium carbonate) and Hydrochloric acid. This will be my plan of howto carry out my investigation.There are many factors, which I could adjustment in this experiment. Theseare1) Concentration. An increase in density means there are more(prenominal) particles. More particles means there will be more collisions.2) Surface Area. Breaking the solid into smaller pieces will increase the surface area exposed to the other reactant.3) Temperature. Increasing the temperature will cause the particles to break faster. When particles move faster, more collisions occur and the collisions are more violent. This should increase the reaction rate.All of these factors will affect the reaction rate, but I have decidedto mixed bag the concentration of Hydrochloric acid. This will determinethe rate of reaction by measuring the amount of Carbon Dioxide givenoff.As I will only smorgasbor d one factor, I will have to keep other factorsconstant. These will be -1) The temperature2) The size of the marble chip3) The same apparatus will be used throughout the experimentI predict that as the concentration of hydrochloric acid increases andit becomes more concentrated, the more Carbon Dioxide will be givenoff. As the concentration increases the chip will fizz more violently.When the concentration has been doubled, the reaction will havedoubled.The reaction rate can be increased if the concentration of thereactant is raised. As there are more particles to react with in ahigher concentration of acid, the chance of an effective collisiongoes up. I have performed homogeneous experiments and have acquired thisequationCalcium + Hydrochloric Calcium + Carbon + Water===============================================Carbonate Acid Chloride DioxideThe reaction rate is also known as the collision theory. This is whensuccessfully 2 particles collide with each other and give off asuccess ful product. This is as shown belowFor my experiment I will use 5 different concentrations ofhydrochloric acid. These are 0.5M 1M 1.5M 2M 2.