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Lab Report: How the temperature of water will affect the reaction time of sodium thiosulfate and hydrochloric acid

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Introduction

Lab report: How the temperature of water will affect the reaction time of sodium thiosulfate and hydrochloric acid Lab report: How the temperature of water will affect the reaction time of sodium thiosulfate and hydrochloric acid Hanna Rokossa Date: Week of 5th February Aim: The aim of this investigation is to find out if the temperature of the water can affect the reaction time of sodium thiosulfate and hydrochloric acid. Prediction: I predict that during this experiment when we increase the temperature of the water the faster the reaction will take place. Variables: IV- The thing that we are changing is the temperature of the water DV- The thing we will be measuring is the time that will be taken for the reaction to happen CV- Amount of Water (100ml) The time we start and stop the timer Method: 1.Put on your lab coat and goggles 2.Gather all you equipment 3. Draw an 'x' on three pieces of papers 4. Add 100 ml of 10degrees water to a beaker. ...read more.

Middle

19. Measure 10 ml of Sodium Thiosulfate and add this into a flask. 20. Put the flask into the beaker containing water 21.Measure 5ml of Hydrochloric Acid and pour that into the flask containing the Sodium Thiosulfate. 22.Make sure to have a piece of paper with an 'x' underneath the beaker. 23. Repeat steps 11 to 15 two more times to get the average 24. Record your results and calculate the average 25.Clear up all your equipment and clean your working space. Safety: Make sure you always keep your safety glasses/goggles on throughout this experiment. Do not remove your lab coat until you have completely finished the lab. If you hair is long make sure to tie it up in the back Do not touch any chemicals with your hand Wash your hands after Do not sit down Make sure a equipment is in the middle of your working space so It does not fall down. Apparatus: Paper x3 Pen Goggles Sodium Thiosulfate Hydrochloric Acid Beaker Flask Stop Watch Ice Kettle Measuring cylinder Water Lab Coat Conclusion: Before doing this experiment I predicted that the warmer the temperature of the water is the faster the reaction rate will increase. ...read more.

Conclusion

the test can be affected by this. This lab experiment was a valid one as the results we got answered the original aim, for example; that the warmer the temperature of the water is the faster the reaction will be. Most of our group?s results are precise as they are only an average of 0.2. Away from each other. There is one result in the temperature 10 Degrees Celsius that is not precise result. My results were not entirely accurate as 50&100 Degrees had the same reaction time average (2.4 Seconds). The results are mostly reliable as we got 8/9 tests done and had a reaction take place but for the last test for 100 degrees the reaction ended up not taking place. If an error would have happened it would have been a human error for example if we added to much of one liquid this might also affect the time of the reaction. Sources: "Collision Theory (Temperature Effect)." Collision Theory (Temperature Effect). N.p., n.d. Web. 10 Feb. 2014. "The Effect of Temperature on Rates of Reaction." The Effect of Temperature on Rates of Reaction. N.p., n.d. Web. 10 Feb. 2014. ?BBC News.? BBC, n.d. Web. 10 Feb. 2014. ...read more.

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