The Effect Of Reactant Concentration On Reaction Rate

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Effect of Reactant Concentration on Reaction Rate

To investigate the effect of the concentration of Sodium Thiosulfate and Hydrochloric Acid and to determine the rate of the reaction. Introduction:
Different reactant have different rate on reaction. Some may occur in a sudden; some can take hours to react. This experiment is to investigate how the reactant concentrations have an effect on the reaction rate.

The reaction equation of Sodium Thiosulfate and Hydrochloric Acid:

2HCl(aq) + Na2S2O3(aq) 2NaCl(aq) + SO2(g) + S(s) + H2O(l)
(GCSE Chemistry, 2017)

Chemical reactions happens when two chemical bond together and create other chemicals. The molecules or atoms of two chemicals came close to
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