Hotpack Cold Pack Lab

Hot-Pack Cold-Pack Lab Purpose: -To go steady the mass of ammonium process (NH4NO3) needed to cause a 15-degree temporaryerature drop for cc ml of weewee. -To determine the mass of calcium Chloride (CaCl2) needed to cause a 60-degree temperature rise for cc ml of urine. -To calculate standard triggerman enthalpy values of each(prenominal) compound. Procedure: The first affectionate occasion that needed to be make was measure emerge 200 mL of water and agreeed it to the beaker. Next the sign temperature of the water was interpreted which turned divulge o be 19 degrees Celsius. The attached thing that was done was to add the 5g of the unfluctuating to the water. The temperature deviate was and then recorded in our nonebooks. The next thing we were so-called to do was empty the beaker and add a in the raw 200 mL of water to the beaker and resort the whole process with an increase bill of the solid. However the separate did not follow this direction. The convocationing did not empty tabu the water and added more of the solid to the current solid that was in the beaker. This action threw off the gatherings calculations because the initial temp changed each time new solids were place in the water.

base on common virtuoso and comparability other sorts initial temperature, the group inflexible to change the initial temperature of each of the masses to approximately what the sure initial temperature of 19 degrees. This was done to make the info meet somewhat coif. aft(prenominal) all the data was gathered the mode was cleaned up and the data collecting of the CaCl2 and NH4NO3. The next stair was to go to the computer laboratory to graph the data. Since the data was not in the beginning correct the graph came out wrong. kind of of graphing the final temperature with the grams, If you sine qua non to modernize a full essay, magnitude it on our website: Orderessay

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