Reaction rates of marble chips :: essays research papers

How can we speed up the reaction between atomic number 20 Carbonate and Hydrochloric Acid?Contents1. Plan &61623 Aim&61623 Equipment&61623 Variable Factors &61623 Prediction&61623 Method&61623 Trial Run2. Results &61623 Results Tables3. Analysis and Conclusions &61623 Graphs&61623 Conclusions4. Evaluation &61623 Accuracy Of Results&61623 Reliability&61623 Improvements&61623 Extending the probe1. PlanAimI am doing this experiment to find out how I can speed up the reaction rate between atomic number 20 carbonate and hydrochloric acidulous. EquipmentThis is the equipment I pull up stakes use&61623 Gas Syringe&61623 Glass Flask&61623 atomic number 20 Carbonate&61623 Hydrochloric AcidVariable FactorsThe factors that could slow down or speed up this reaction are&61623 The sizing of the Calcium Carbonate (marble) pieces This will affect how fast the acid reacts with the marble, the smaller the pieces, the bigger the surface orbit so the reaction can take place faster.&61623 The amount of Calcium Carbonate The more calcium carbonate there is, the more carbon dioxide will be produced and the larger the reaction will be.&61623 The amount of Hydrochloric Acid The more hydrochloric acid there is, the more carbon dioxide will be produced and the larger the reaction will be.&61623 The temperature of the materials The temperature of the materials determines how fast the reaction will take place. The hotter the materials, the faster the reaction and vice-versa. &61623 The concentration of Hydrochloric Acid The higher the concentration (strength) of the acid, the faster it will react. &61623 The purity of the Calcium Carbonate pieces The purity of the calcium carbonate will affect the speed of the reaction also.PredictionFrom previous experiments I have learned that if large pieces are broken into smaller pieces they react faster because they have more surface area. This is because at the molecular level, there are more molecules at the surface of the chips for the molecules of acid to react with when the chips are broken into smaller pieces. The same principle can be applied to the marble chips. The smaller the chips the more surface area so I predict that the smaller marble chips will react faster than the larger chips.MethodHere is the set upIn this experiment I will be keeping the variables I mentioned earlier the same except one to keep the experiment fair. I will be changing the size of the marble chips to see which size reacts the fastest. The gas syringe is firstly clamped to the stand and a plastic tube and bung are attached to the syringe.