I aim to discover how different concentrations of Hydrochloric acid influence the rates of reaction. In order to carry out this investigation I have decided to use marble chips, which I will vary the sizes as powder, small chips and large chips. I will also be changing the concentration, the different concentrations are as follows 0.2m, 0.5m, 1m, 1.5, 2m. I have chosen these concentrations as they have a good range, we have to take this in to account, in view of the fact that if I was to use a concentration lower than 0.2m, the rate of reaction will be to slow or if I was to use over 2 molars, it is too dangerous to handle and violates the healthy and safety rules with in the lab. An advantage of using a good range of concentrations is that my results would also have a good range.
To proceed with my investigation I will have to wear safety goggles as I have to follow the lab regulations as well as keeping my eyes away from any harm.
To undergo with my investigation I have found out what a reaction is, how we measure the rates of reaction and 4 ways rates of reaction can be affected.
When two reactants collide together and form a new substance it is called a reaction. To measure the rate of reaction you observe either by how long it takes for the reactants to be used up or how quickly the products are forming. Varying the concentration, temperature, surface area and using catalyst all change the rate of reactions.
I am going to do preliminary experiment, ahead of the main experiment so I can make sure that I use the right methods and I can see if any of my aspects can be improved. Doing preliminary research helps me to do my final experiment as it makes it simpler to understand and go through as I will have done something similar beforehand
To keep it a fair test I used 0.5g of each substance and a concentration of 1 molar...