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Find out how the concentration of a reactant may affect the rate of the reaction in which it is involved
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| Submitted: Sun Dec 15 2002
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Aims ? To find out how the concentration of a reactant may affect the rate of the reaction in which it is involved. To do this I will need to combine two possible reactants (here, I will use sodium thiosulphate and hydrochloric acid), one of which will be diluted (the hydrochloric acid), and see how long it takes for a change to take place at different dilutions (in this experiment, solid matter or precipitate will form, causing a cross marked on a piece of paper underneath to become imperceptible when the reaction has completed). ? To explore how different degrees of change in concentration affect the rate of reaction, and see if the increase is proportional. Equation The equation for this experiment is: - SODIUM THIOSULPHATE + HYDROCHLORIC ACID = SODIUM CHLORIDE + SULPHUR + SULPHUR DIOXIDE + WATER Na2S2O3 + 2HCl = 2NaCl + S2 + SO2 + H2O (aq) (aq) (aq) (s) (g)...
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