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Temperature Vs Rate of Reaction

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Introduction

Rate of Reaction lab Research Question: Does temperature affect the rate of reaction between two substances? Dependant Variable: Rate of Reaction of solution Independent Variable: Temperature of Reactants Controlled Variables Both reactants must have the same temperature the same amount of both reactants must be used for each trial The same calorimeter must be used throughout the experiment the same color slide on the calorimeter must be used throughout the experiment The reactants must not be contaminated before the reaction takes place Materials 80ml H2S204 0.25 mol solution 80 ml HCl 1 mol solution Calorimeter (with plastic containers) ...read more.

Middle

Get the 500ml Beaker and fill it water at 6 degrees Celsius ( If tap water isn't cold enough add ice) 4. place the test tubes in the cold water and let sit, place a thermometer in each test tube 5. When the test tubes and water are all at 6 degrees take 2ml of HCl and place it in the calorimeters container 6. Take 2ml of H2S204 and pour it in with the 2ml of HCl, as soon as you start pouring start the stopwatch 7. When the opacity of the substance is 0 stop the stopwatch and record the data 8. ...read more.

Conclusion

And this makes sense because if the particles are hotter, they have more energy, and therefore when reacting with other particles they have greater chances of overcoming the activation energy. Some things that could be improved for this lab is that the temperatures could have been from a wider scale. Also an important thing to note is that because the eyedropper was not long enough to use to insert the substances into the calorimeter, that the solution reacted differently when poured than when squirted together. Perhaps with the eyedropper the values would be more accurate. Thirdly if we had a larger calorimeter we could use greater amounts of reactants, meaning that reactions would take longer and the discrepancies between the reaction rates would be greater. ...read more.

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