The aim of my investigation is to find precisely how changin

Prediction: I predict that as concentration increases so will rate of reaction. I think they will be directly proportional. This is because if a solution is more concentrated it will have more particles of the reactant moving in it. This means the more of a reactant in the solution the more likely it is to bump into other particles, as they are crowded together. If you double the concentration you will double the reactant, which will double the number of collisions, and so will double the speed of the reaction.

In this experiment there were several variables.

In any investigation it is important to keep all variables constant except one, which you may be testing. In my investigation I will only vary concentration. I will make sure the other variables will remain constant.

Temperature affects rate of reaction. As temperature increases so will rate of reaction. In most reactions for every 10oC rise in temperature will double the rate of re

I will do six concentrations so that I will get wide range of results from my investigation. They will vary from 2 mol/dm3 to 0.4 mol/dm3. I chose these values because 2 moles was the highest concentration available to me and any lower than 0.4 mol/dm3 would have been too slow to record.

To keep the temperature the same throughout the investigation I will aim to collect all my results in one lesson.

Some topics in this essay:
Concentration Mol/dm3, Pressure Pressure, Temperature Temperature, , Concentration Volume, Moles CO2=, Water CaCo3, rate reaction, Apparatus Preliminary, Clamp Stand, Produced Calcium, 1 mole, measuring cylinder, calcium carbonate, mole 1 mole, collision theory, affects rate, hydrochloric acid, preliminary investigation, mole 1, gas syringe, increases rate reaction, affects rate reaction, means reactant solution, reactant solution bump,