Prediction
From my Scientific Knowledge I predict that the higher the temperature of the Hydrochloric Acid, the quicker the rate of reaction will be. My Hypothesis is that when two chemicals react, their molecules have to collide with each other with sufficient energy for the reaction to take place. This is collision theory. The two molecules will only react if they have enough energy. By heating the Hydrochloric Acid, I will raise the energy levels of the molecules involved in the reaction. Increasing the temperature means that the molecules will also move faster. I based my Prediction on the Kinetic Theory.
Diagram
Controlling My Experiment
In order to make my Experiment a fair test, I need to control my experiment. I will do this by;
- Making sure I have the same concentration of Hydrochloric Acid, for each Experiment.
- Making sure I use the same length of Magnesium Ribbon.
- Use a Measuring Cylinder, to get the volume required to the exact amount.
- Use a stopwatch, so that I get the timing correct.
Safety Precautions
I will need to observe several safety precautions whilst conducting my experiment.
I will need to wear goggles in case any acid splashes in my eyes and also observe the usual laboratory regulations, such as tucking bags away and stools under the benches.
The following warning signs will also apply to me when I am conducting my experiment.
Corrosive Flammable Harmful of Irritant
Input / Output Variable
References Used
References I have used in my Investigation are;
Results Table
Graph
A Line Graph to Show how Temperature affects the average rate of Reaction between a Magnesium Ribbon and Hydrochloric Acid.
Analysing Results / Conclusion
My results clearly show that the higher the temperature of the Hydrochloric Acid, the faster the rate of reaction was with the Magnesium Ribbon.
I can identify a trend in my graph, which is the higher the temperature, the faster the reaction and I have no analogous results from my experiment to highlight. My data is sufficient to make a firm conclusion.
My results show that the higher the temperature of the Hydrochloric Acid, the faster the Rate of Reaction, between the Acid and the Magnesium Ribbon. From my Scientific Knowledge I can explain why this happened. When two chemicals reacted, their molecules had to collide with each other with sufficient energy for the reaction to take place. This is known as the collision theory. The two molecules will only react if they have enough energy. By heating the Hydrochloric Acid, I raised the energy levels of the molecules involved in the reaction. Increasing the temperature meant that the molecules will also move faster.
In Conclusion, I think that my data and results are extremely reliable, and that they correspond with my prediction. I carried out my investigation correctly, and to the best of my ability and followed all Safety procedures. I do not feel that in any way I may be able to improve my procedure, but from another persons view they may think I can improve my Investigation.