Affects on varous acid concentrations

An Investigation To Ascertain The Effects Of Various Acid Concentrations On The Rate Of Reactions.

Aim

This experiment is to determine if the concentration of sodium thiosulphate affects the rate of the chemical reactions with hydrochloric acid, resulting in the solution becoming cloudy.

Fair Test

All liquids used in the experiment are required to be at the same temperature. Substances that are at a higher temperature have absorbed energy. This causes the movement of particles to increase resulting in them colliding with other particles more frequently. This is one of the factors which determines the rate at which the particles react with one another. Consequently, liquids at a lower temperature contains slower moving particles, reducing the rate of reaction. Therefore it is important to maintain the temperatures the same to enable a fair test.
The concentration of the hydrochloric acid must be kept the same. A lower concentration means less particles in the solution, the...