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pre-lab 8 ch 204 - obennoskey(blo242 Pre-lab 8 Lyon(52635...

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obennoskey (blo242) – Pre-lab 8 – Lyon – (52635) 1 This print-out should have 5 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0 points When should the temperature readings begin for each part of the experiment? 1. The temperature readings should begin as soon as students get to the lab. 2. It doesn’t matter when the temperature readings begin as long as the final tempera- ture of the water is recorded. 3. The temperature readings should begin four minutes before starting the reaction in order to provide an initial baseline on the Temperature vs. Time plot. correct 4. Temperature will not be measured in this lab. It will be calculated from the slope of the Temperature vs Time plot. The first temperature value will be the temperature at the y-intercept. 5. It doesn’t matter when the temperature readings begin as long as the values are con- verted to Kelvins before being graphed. 6. The temperature readings should begin at the exact moment the reaction is started. Explanation: The Temperature vs Time graph needs a clear baseline and topline in order to deter- mine the ΔT value. The temperature read- ings should go for four minutes before the
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