Sodium Thosulphate essays

Sodium Thosulphate essays Plan an investigation into the rate of reaction between Sodium thiosulphate and hydrochloric acid. The equation for the rate of reaction is 1/time. The rate of reaction measures the speed of reaction. It is a measure of the loss of reactants and gain of products. The faster a reaction takes place, the shorter the time needed for the reaction to finish. An example of a slow reaction is rusting An example of a fast reaction is sodium and water. This predicts what will happen to the speed of a reaction if a variable like surface area, concentration and temperature. This theory says that when particles collide a reaction occurs. With a greater surface area a solid, particles collide far more frequently and as a result the reaction rate is greater. If there is a higher concentration the particles are closer and they have a greater chance of colliding. The more collisions, the faster the reaction. The higher the temperature the faster the particles are going to move. This means that there are many energetic collisions that will speed up the reaction. The word and chemical equation, for this reaction, which takes place in a solution: The variables you can change in this experiment are: The variables that we will be keeping constant are: I predict that the rate of reaction would get faster, if the volume of sodium thiosulphate was increased. This is because a higher concentration of sodium thiosulphate would mean that the particles would be closer together and as a result there would be more collisions, which would make the reaction faster. This can be scientifically proven using the collision theory. For my investigation I will use 1/time for the rate of reaction. I decided to do a preliminary experiment to investi ...