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An Investigation to find out if when sodium thiosulphate and hydrochloric acid react will the concentration of these two substances effect the rate of reaction.
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| Submitted: Sun Dec 15 2002
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An Investigation to find out if when sodium thiosulphate and hydrochloric acid react will the concentration of these two substances effect the rate of reaction. Introduction I am going to study the effect of concentration, on rate. In the reaction between sodium thiosulphate and hydrochloric acid. Sodium + Hydrochloric -> Sulphar + Water + Sulphar + Sodium Thiosulphate Acid Dioxide Chloride Na2S2O2 + 2H¯ -> S + H2O + SO2 + 2NaCl Scientific Background S2O3²¯ + 2H¯ -> H2O + SO2 + S Thiosulphate Hydrogen Ion Ion When you increase the concentration of sodium thiosulphate you get more thiosulphate ions. More thiosulphate ions will give more collisions with hydrogen ions and a faster rate of reaction will occur. Solute - solid Solvent - liquid Concentration - molars (M) If you increase concentration then you'll get more ions, making more collisions which will give you a faster reaction. Key Factors The key factors in this experiment are the variables which are: * Room temperature * Concentration of hydrochloric acid * Volume of hydrochloric acid * Concentration of sodium thiosulphate * Volume of sodium thiosulphate Fair Test To make the experiment a fair test, I will change the concentration of...
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