In this experiment I intent to investigate the effect of concentration of hydrochloric acid on Sodium Thiosulphate.
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Planning In this experiment I intent to investigate the effect of concentration of hydrochloric acid on Sodium Thiosulphate. When mixed together, these form a yellow precipitate. We are going to time the reaction time for this experiment Na2 S 2 O3 + 2HCl 2 NaCl + S + H2O + SO2 Equipment Needed To do the experiment, I will need the following equipment: * Hydrochloric Acid * Sodium Thiosulphate * White Paper square with 'X' marked upon it * A conical flask * Measuring cylinders * Beaker * Water * Stopclock Method 1. Beaker filled with Sodium thiosulphate 2. Hydrochloric Acid bottle fetched 3. Conical flask will then be placed upon white paper with x on it. 4. For each reading throughout the final experiment, 10cm3 of acid will be used. 5. 40cm3 of thiosulphate is to be measured in a measuring cylinder for the purposes of the first reading and 0cm3 of water will be measured 6. The thiosulphate (and water on the other occasions) will then be...

