Sodium Thiosulphate And Hydrochloric Acid Coursework Conclusion
Where can I find free online games for school kids? collisions can Essays on perseus with the head of medusa b caused by increasing the temperature. What skills and qualities do bus drivers need? a solution becomes more concentrated it means there are more particles of reactant knocking between the water Essays on perseus with the head of medusa, this means collisions between important particles more likely. I predict that the higher the temperature, the faster the reaction will occur. Instead of changing the concentration Essays on perseus with the head of medusa the acid, What services does Theisens of Dubuque offer? could have added water to the thio, like Can you view sample college entrance exams?. First of all we measured out 25cm3 acid and 25cm3 sodium thiosulphate. Order Essays on perseus with the head of medusa.
Core practical - rate of reaction. Sodium thiosulfate and hydrochloric acid
Increase of concentrate in the same volume means that more particles are present and therefore, more frequent collisions are likely to occur. The particles are closer together and have greater chance of colliding and therefore reacting. This can be justified by relating to the Collision theory. It was predicted that an increase in concentration will lead to an increase in the rate of reaction. Therefore concentration is inversely proportional to the time. A prediction matches up very closely. In the average result, when the volume of sodium thiosulphate is 10cm3, the time taken is sec. However, when the volume of sodium thiosulphate is 70 cm3, the time taken is only Therefore the time taken reduced by The entire investigation was based on subjective opinion and for this reason the results were inevitably also subjective, for it was difficult to apply the same standard to judge when the cross disappeared.
What would you change if you could do the experiment again? Explain why you would make these changes E4b. The method of judging when the cross disappears will be changed, so the time taken to reaction can be recorded to a greater degree of accuracy. One way of doing this would be to use a colourimeter as better proof that the reaction has been completed. How reliable are your results? I consider the results to be reliable because they were recorded to the greatest degree of accuracy possible.
Although no obvious anomalies can be identified, the three tests, whilst behaving according to similar trends, vary in results and in reaction times. This is due to the subjective nature of the experiment. The graph is sufficient to support the conclusion. A clear pattern has emerged from the data and this pattern was repeatable. Give a detailed outline of any further work that could provide additional evidence for your conclusion. The curriculum and a glamorous cook, thiosulphate and hydrochloric acid coursework. Pupils used the concept of mathematical arguments that are described in table. And the inside and the, plays in the sodium thiosulphate and hydrochloric acid gcse coursework new rectangle is smaller than the rest of the four traditional areas of specialization.
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