How the change of Hydrochloric Acid concentration affects the rate of reaction with Marble Chips :: GCSE Chemistry Coursework Investigation

How the change of Hydrochloric Acid submergence affects the rate of reply with Marble ChipsAimTo find if changing the concentration of an acid leave behinding growing ordecrease the rate of the reaction when marble is fade go forth inhydrochloric acid. With the equation CaCO3 + 2HCl CaCl2 +H2O + carbon dioxide.The rate of the reaction affects how quickly the CO2 is produced.Background Knowledge====================The rate of reaction dep closedowns on how often and how knockout the reactingparticles collide with each other. Particles countenance to collide in orderto react, and the own to collide hard adequacy as well. This is c each(prenominal)edthe collision theory. When the temperature is increased the particlesall croak quicker. If they are moving quicker then they are vent tohave much collisions. Higher temperature also increases the energy ofthe collisions, because it makes all the particles move faster.Increasing the temperature only causes faster collisions. R eactionsonly happen if the particles collide with enough energy. At a highertemperature there will be more particles colliding with enough energyto make the reaction happen. This initial energy is cognise as theactivation energy, and it is needed to break the initial bonds. If oneof the reactants is a solid then breaking it up into smaller pieceswill increase its surface area. This means the particles around it inthe solution will have more area to work on so there will be moreuseful collisions. If the solution is made more turn it meansthat there are more particles of reactant moving about among thewater molecules which makes collisions between the important particlesmore likely. Because of this I expect the reaction rate to be quickerwhen the concentration of the acid is higher. The reaction shouldhowever, end on the same amount of bodge given off. Rate is deliberate bythe disappearance of reactants and/or the appearance of a product.PredictionWhen the concentration of acid i ncreases the rate of reaction willincrease. I will be able to see the rate of reaction is increasing asthe gas is produced more quickly.Equipment=========Clamp StandHydrochloric AcidMedium Marble Chips measurement Cylinder (100ml) x 2 (clearly mark each for water or acid)250 ml conical flaskBalanceGas Syringe safeguard Equipment i.e. Lab coat, gogglesBoiling TubesStopclockDelivery TubeThermometerMethod======* NB before each experiment, ensure that the air temperature is consistent.* Using the measuring cylinder specific for the acid, measure out the specified amount of hydrochloric acid. Then, measure out the specified amount of water in the other measuring cylinder. well out both of these liquids into a boiling tube.