Investigate how the concentration of hydrochloric acid effects the rate at which it reacts with calcium carbonate :: GCSE Chemistry Coursework Investigation

look into how the preoccupation of hydrochloric acid effects the treasure at which it reacts with calcium carbonateInvestigationPlanAim===Investigate how increasing the concentration of the solutionhydrochloric acid effects and alters the rate at which it reacts withmarble chip, calcium carbonate.Rate of reply is affected by vi main factors* Temperature* Surface argona of a solid* Concentration of a solution* Pressure of a natural fumble* By using catalysts* exploitation biological catalysts called EnzymesAs outlined above the rate of a answer increases when temperatureincreases, the concentration of dissolved reactants increases, thepressure of toutes increases, solid reactants are in smaller pieces andof greater surface area and also if a catalyst is used.For this sample I have been asked to pay particular attention tothe factor CONCENTRATION, and the slipway in which it affects the rate atwhich a response takes place.We can ginmill the rate of answer by fare the clock at which theproducts of the reaction are produced or the reactants used up andthere are a few different ways of doing this such asBy measuring gas volumeHere the marble chips and dilute hydrochloric acid are put in aconical flaskful. This is connected to a gas syringe, which collects and totals the volume of gas formed. At regular time intervals a step is then taken of the volume of gas collected.Another way to measure the volume of gas produced is to displace waterfrom a measuring piston chamber as per diagram below.We can also measure the rate of reaction by measuring mass loss herewhen a gas is lost the mass decreases, which can be measured byplacing the flask on a balance.The last way is to note how long it takes for a precipitate to formsuch as in the chemical reaction the thiosulphate reaction.I conducted a preliminary experiment and from this determined that the well-nigh reliable and accurate way to measure the release of carbondioxide gas would be by using a measurin g cylinder to go steady thedisplacement of water and therefore determining how much carbondioxide has been produced. surmiseI predict that as time increases so exit the amount of carbon dioxideproduced however throughout the experiment the rate of reaction willslow because as time increases there will be little and less un-reactedparticles present to take part in fruitful collisions and emergence incarbon dioxide water and calcium chloride being formed, this meansthat the time between fruitful collisions will increase because aparticle will take longer to find another un-reacted particle withenough activating energy to collide and react with.I hypothesise that as the concentration of the hydrochloric acid