GCSE Science Coursework - Investigating the factors that affect the reaction between sodiumthiosulphate and hydrochloric acid

Investigating the factors that affect the reply between atomic number 11thiosulphate and hydrochloric pane amaze: To investigate the differences in site of reaction between sodiumthiosulphate and hydrochloric acetous as the concentration of sodiumthiosulphate is every raised or take down while keeping the extreme intensiveness of the sodiumthiosulphate solution at 50cm . The chemical reaction for this experimentationation is: Method: I inauguration with 5cm of hydrochloric acid to which I make up a vary concentration of sodiumthiosulphate. To change the STS (sodiumthiosulphate) concentration I impart provide 10cm of water to a fresh flask of STS afterwards each(prenominal) experiment while each era reducing the volume of STS by the same amount. I will be metre the results by timing the reaction until the solution is too cloudy and modify with sodium for an image underneath the flask to be seen. I am allowing up to leash minuets for this reaction to take place, after which time the concentration will simply be label as over three mins. victimization this method my final results instrument panel will read as follows: mass of Sodiumthiosulphate         Volume of Water          concentration of Solution (Molar)         Results - Time Taken 50cm         0cm         0.2m          40cm         10cm         0.16m          30cm         20cm         0.12m          20cm         30cm         0.08m          10cm         40cm         0.

04m          Using a table as seen preceding(prenominal) allows me to make a interpret displaying the correlation between the contrary values used in the experiment once I have filled in my results column. Materials: To conduct this experiment I will need: nearly 150cm of STS Approximately 25cm of acid and Approximately 100cm of water These volumes of STS, water and acid will be enough for me to run one jam of experiments, these amounts top executive need to be increased by up to three times to accurately carry proscribed the experiment. As hygienic as the liquids I will in addition need: Conical Flasks Measuring Cylinder Beakers Safety gawp I expect that as the solution of STS becomes less arduous the rate of reaction will slowdown and may hap the time specialize for the experiment. If you want to get a overflowing essay, order it on our website: OrderCustomPaper.com

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