Chemestry on sodiumthiosulphate turning hydrochloric acid milk.

Investigate the rate of reaction between sodium thiosulphate and hydrochloric acid, when you change the concentration Aim         The aim of this experiment is to investigate what affects the rate of reaction between Sodium Thiosulphate and Hydrochloric Acid. By using the variable of sodium thiosulphate concentration Equations Na2S2O3 + 2HCl = 2NaCl +SO2 H2O + S Sodium thiosulphate + hydrochloric acid = Sodium Chloride + sulpur dioxide + water + sulpur Background research What is the most accurate way of obtaining …

…have a light bulb and a light sensor then you would no exactly when the reaction had got to the point where you can no longer see through it. Extend I could extend the experiment by having bigger quantities of the solution. On the other hand, I could change the variable. Alternatively, I could put the experiment into a water bath and see if changing the temperature the changes the out come of the experiment.