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

Investigate how the ducking of hydrochloric acid effects the rate at which it reacts with calcium degree centigradeateInvestigationPlanAim===Investigate how increasing the concentration of the solutionhydrochloric acid effects and alters the rate at which it reacts withmarble chip, calcium degree centigradeate.Rate of reaction is affected by six main factors* Temperature* Surface sector of a solid* Concentration of a solution* Pressure of a gas* By using catalysts* Using biological catalysts called EnzymesAs outlined above the rate of a reaction increases when temperatureincreases, the concentration of dissolved reactants increases, thepressure of gases increases, solid reactants are in smaller pieces andof greater surface area and also if a catalyst is used.For this experiment I have been asked to pay particular attention tothe factor CONCENTRATION, and the ways in which it affects the rate atwhich a reaction takes place.We loafer measure the rate of reaction by measuring the time 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 option in aconical flask. This is connected to a gas syringe, which collects andmeasures the volume of gas formed. At regular time intervals ameasurement is then taken of the volume of gas collected.Another way to measure the volume of gas produced is to displace waterfrom a measuring cylinder as per diagram below.We piece of ass 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 themost reliable and accurate way to measure the release of carbondioxide gas would be by using a measuring cylinder to see thedisplacement of water and therefore determining how much carbondioxide has been produced. guessingI predict that as time increases so will the amount of carbon dioxideproduced however throughout the experiment the rate of reaction will tedious because as time increases there will be less and less un-reactedparticles present to take part in fruitful collisions and result incarbon dioxide water and calcium chloride being formed, this meansthat the time between fruitful collisions will increase because aparticle will take longer to start another un-reacted particle withenough activation energy to collide and react with.I hypothesise that as the concentration of the hydrochloric acid