An experiment to find out how changing the concentration of acid :: GCSE Chemistry Coursework Investigation

An experiment to find out how ever-changing the preoccupancy of acidaffects the step of chemical reactionPlanningAimI am to find out how changing the concentration of the hydrochloricacid (HCL) affects the rate of reaction. The hydrochloric acid result bereacting with marble chips (small, medium, large).During my experiment I for take out be changing one variable. This pass on be theconcentration of the acid. I go forth use the concentration of HCL from0.5 molar/dm3 to 3.0 molar/dm3. I ordain use 3grams of marble chips forevery size of chip. By doing this I impart find out if the rate ofreaction is quicker or poky using a different concentration of acid.The equation I pass on be using isCaCO3 (s) + 2HCl (aq) CaCl2 (aq) + H20 (l) + CO2 (g)Calcium Hydrochloric Calcium Water ascorbic acidCarbonate Acid Chloride DioxideMethodFirstly I must get the correct equipment and assemble it safely andcorrectly. To do this I will sate a water tray half full with water.Then I will colle ct 3g medium chips. I will measure 30cm3 ofhydrochloric acid. I will connect the delivery tube to the measuringcylinder which is turned all over which will be full with water. This isshown on my diagram. I will mystify timing using a stopwatch and recordthe results every 10 seconds for 1 minute. I will use 0.5molar/dm3 to3.0molar/dm3 of hydrochloric acid and record 3 sets of results andthen I will take an average.Fair TestIn order to make my experiment safe I will swap only one thing. Iwill be changing the concentration of the acid. Everything else willremain the same through out the experiment. I will use the sameequipment and do the experiment during the same lesson where I rat.This can be important because room temperature can increase the rateof reaction. The temperature could be higher on a certain day andaffect my results. primer coat InformationRates of Reaction* Increasing the temperature increases the rate of a chemic reaction.* Some chemical reactions are degraded a nd others are slow. A fast reaction could be a rocket exploding, and a slow reaction is metal rusting.* Rates of reaction can be measured by finding out how quickly a product is formed or how quickly a reactant is used up.* Examples of measuring reaction rates let in measurement of the volume of gas formed, and measurement of the loss in kitty when a gas is given off.How does surface area affect a chemical reaction? If one of the reactants is a unassailable, the surface area of the solid will