An experiment to investigate whether concentration of acid has an :: GCSE Chemistry Coursework Investigation

An experiment to investigate whether concentration of acetous has an found on the reaction post of the reaction between calcium carbonateand Hydrochloric Acid.1. The key operator I plan to investigate and what I exit do to make myexperiment a fair testThe factor that I plan to investigate is whether the concentration ofacid (the acid organism HCl) has any effect on the rate of reactionbetween Calcium carbonate and Hydrochloric acid. I ordain vary theconcentration and calculate rate of reaction, and calculate the effectof the factor by measuring the amount of vaunt given of during thereaction, and finding let out how much gas is given of both 15 seconds. I allow get a line the gas by foaming it into a gas collection thermionic vacuum tube in a piddle bath.I allow for use five antithetic concentrations 80%, 70%, 60%, 50%, and 40%acid. I will mix acid with water to get the desired concentration, andfor each experiment I will keep the volume of the acid and watercombined at 50 ml. For example in order to 80% concentration I willmix 40 ml of acid, and 10 ml of water. For each differentconcentration I will conduct 3 identical experiments, and collect myresults every 15 seconds. I will then average out the three differentresults for i particular time and produce one result. I will collect8 results per an experiment. I will recite any mea truements that dontappear to follow the general trend.Also to make sure that results are accurate I will use a carbon mlmeasuring tube with marking for every 1 cm3. I will measure the liquidin a test tube with 1 cm3 marking.I will conduct my experiment in the laboratory. The par for thisexperiment isCaCo3 + 2HCL CaCL2 + H2O + CO2The variables I plan to control1. find area The turn out area of each marble chip should be keptrelatively the same because due to clashing theory if more(prenominal) than surfacearea is available the number of particles of solid reactant availablefor collision will increase. Therefore mo re collisions can occur, andit is likely there will be more collisions with sufficient energy tosuccessfully lead to a reaction. I might not be able to keep thesurface area of my marble chips exactly the same but I will attempt tokeep it as similar as possible.2.Volume of liquid I will keep the amount of liquid at 50 ml, becauseif I dont keep the amount of liquid constant I will alter the amountof acid in contact with the marble chips, because if there is more HCL