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Wednesday, February 5, 2014

thermochemistry experiment - lab report

Objective: Does the temperature of the weewee increased or decreased as the change field glass is added both 30 seconds, until 300 seconds? What reply lead it be? (Endothermic or Exothermic reply) Hypothesis: The temperature of the irrigate allow for decreased as the dry ice is added all(prenominal) 30 seconds. Also, the reaction will be endothermic reaction. Reaction: carbon dioxide+H2O → H2CO3 Technique: I will nominate a bowl that stomach fit 1000cc body of water. Then survey the sign temperature of the water using Pasco sensing element first. Then, I will use insulated gloves to put one dry ice each 30 seconds and see the temperature change. I will do this endlessly until 300 seconds then I stop. Variable: Control - Water, 1000cc free-lance- ironical ice amount, 1-10 Dependent- Temperature Background Information: change ice is frosty carbon dioxide, Co2, which can make tons of fascinating try. The temperature is well-nigh -10 9.3°F or -78.5°C. Which is good for tutelage things cold, for example to go forward box of ice cream cold. Dry ice is deluxe faster in water or else than air. It was because the water transfers raise up much more quickly to the surrounding. each in water or air, dry ice can change its form, from hearty to gas. Why you have chosen this situation technique to saloon the temperature? I chose the particular technique to measure the temperature of the water with dry ice because this is the only way it works. Also, it is easier for me to do work and recognize the concept. What difficulties could you encounter and what precautions may you need to grapple? The difficulties that I encountered during the experiment was when I needed to put a dry ice in the bowl and at the equivalent time I needed to look at the Pasco sensor to record the data. To pass this problem, I asked my maid to look at the Pasco sensor either 30 seconds and report to temperature data. Safety came first, that is wherefore I need to ta! ke the precautions in every experiment. I used insulated gloves to...If you requirement to get a full essay, hunting lodge it on our website: OrderCustomPaper.com

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