Science Investigation
Srategy
I am ivestigating the reaction of sodium thiosulphate and hydroclohric acid.
sodium thiosulphate(aq) + Hydroclohric Acid (aq) --> Sodium cloride (aq) + Sulphur Dioxide (g) + Water (l) + Suplhur (s)
Na(2)S(2)O(3) + 2 HCl --> 2NaCl + SO(2) + H(2)O + S
The finished reaction of the 2 clear liquids is cloudy.I will use this change from clear to cloudy as an indicator as to when the reaction is finished.
By using this change , i can see the effect of changing other factors has upon the rate of reaction.I will be sure to only change one factor at a time
(as far as possible) because otherwise i will not know which factors are influencing the rate of the reaction.
I have decided that changing the (molar) Concentration of the hydroclohric acid is the factor im going to investigate.
My Hypothesis is that as i decrease the concentration of the hydroclohric acid, the rate of reaction will also decrease.I Belive This Because Chemical......
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