CaCO3 vs HCl

Conclusion factor (1): My conclusion is that the experiment was successful and that the results were reliable to make a conclusion from, we also find that the results were like my prediction and like the preliminary test. I also will conclude that concentration of the acid does effect the rate of reaction. There were a couple of points for the experiment to be improved by, first that by adding the CaCO3 and quickly placing the cork on top will lose time and some of the immediate product is lost. Also that a normal person pressing the time is not the most accurate of techniques. This obviously increases the error percentage in the results making the result outcome slightly incorrect. One way to improve the experiment would be to use a cork with two holes fitted with valves. One to enter the acid and CaCO3 powder and one connected to the syringe for the product of the reactants to be let out. In my view, I find this a more reliable technique. In addition, from the graphs I concluded that after the reaction reaches a peak it slowly comes to a complete halt. This meant that the graph was accelerating at first and then the gradient changed for the curve to become towards a vertical line. Evaluation factor (1): I evaluate that the experiment was successful and got reliable results. Although there was space for improvement the resources available for the experiment was limited, therefore I was not able to use sophisticated devices. During the whole experiment, it has always been a fair test, which helped in getting good results. Aim factor (2): My aim for this experiment is to find out if the temperature effects the rate of reaction between CaCO3 & HCl. Predicti ...