CH116heatofreactionlab

CH116heatofreactionlab - CH116-J1 Week of October 6, 2008...

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CH116-J1 Week of October 6, 2008 Heat of Reaction 1. Introduction . The purpose of the heat of reaction experiment was to determine the concentration of acetic acid in vinegar by finding the change in temperature of vinegar after the addition of sodium hydroxide with both excess acid and excess base, and using that information, along with the moles of water, to perform a series of calculations to find heat (cmΔT), change in enthalphy (q/moles of water), and finally the molarity of acetic acid. To measure the temperature of the vinegar and solution of vinegar and sodium hydroxide, a coffee cup calorimeter was used. This kept the solutions at a constant pressure and helped insulate them for more accurate measuring. 2. The Experimental Section . a. Using a coffee cup calorimeter and proper methods, measure the temperature of 40 mL 1.0 M vinegar. Add 20 mL NaOH to the vinegar in the calorimeter and measure the new temperature. Repeat with 30 mL of vinegar and 10mL of NaOH, and again with 20 mL
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CH116heatofreactionlab - CH116-J1 Week of October 6, 2008...

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