Concentration And Reaction Rate
The aim of this investigation is to see how the concentration of a reactant in ratio to the reactor affects the rate of a reaction. When hydrochloric acid and Thiosulphate react together sulphur is liberated this means that as the reaction goes on the solution will become yellow and will change from being transparent to translucent to opaque. The sulphur is formed as a solid but not in the usual precipitation way.
Na2 + S2 + 2HCL 2NaCl+SO2 + S2 +H2O
To time the reaction I will draw a black cross on a piece of plain paper on which the beaker of reactants will be placed (HCL and Thiosulphate). When the chemicals come into contact with each other I will start timing with a stopwatch and will stop timing when the cross is longer visible through the beaker from above.
A reaction:
A chemical reaction between to chemicals can only happen if their molecules......
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Approximate Pages: 14 (250 words per double-spaced page)
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