Thermochemistry the spark sls was turned on following

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Thermochemistry The SPARK SLS was turned on following that the “Home” button was pressed. The temperature probe was then connected to the device and the build button was pressed. Then the temperature C and the time bar were pressed on. Following that the xy graph button along with the “OK” button was pressed. Next the sampling options button was pressed with the sampling rate button along with pressing 2 and “OK”. Then the sampling rate until button along with the second and “OK” button was pressed. Finally the calorimeter was set up. It consisted of two Styrofoam cups; one was placed inside the other and a rubber stopper in which a steel temperature probe was inserted in. Determination of the Heat of Neutralization 50mL of 1.0M NaOH was measured in a graduated cylinder and added to the base of the calorimeter. The gradated cylinder was then rinsed out several times with water and once with 5mL of 1.0M HCl. Then 50mL of the 1.0M HCl solution was measured out and added into a 250mL beaker. The temperatures of the acid and base solutions were recorded for about 45s separately using the steel temperature probe. The probe was placed in one of the solutions then the start button was pressed, after 45 seconds the stop button was pressed and the probe was removed and rinsed out with distilled water and then dried. It was then repeated with the other solution. The two plots on the screen were identical and the temperatures of the two solutions were the same. If not the experiment cannot be conducted. The temperature probe was put in place in the calorimeter and simultaneously the acid and base solution was added into the beaker and it was mixed
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thoroughly by swirling the contents. The start button was immediately pressed. When the plot reached its peak and started to level off the stop button was pressed. The data was then saved on a USB drive. Then the home button was pressed following the “do not save” button. The data was plotted using excel and the temperature of the acid, base and mixture solutions was recorded. Delta T was calculated along with q, n and the enthalpy of neutralization. The steps were repeated for 1.0M NAOH and 1.0M HAc along with 1.0M NH3 and 1.0M HCl. Finally delta H was calculated for the reaction of 1.0M NH3 with 1.0M HAc using the enthalpy of the neutralization data determined in this experiment.
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Pre Lab Experiment #9 Jacqueline Galibova 11/1/17 Purpose: The purpose of this experiment is to determine the relationship between the pressure and volume (Boyles Law) at constant temperature and the relationship between the pressure and temperature (Gay-Lussacs Law) at constant volume. Exploring Gas Laws Boyle’s Law: The SPARK SLS was turned on. The absolute pressure sensor was connected to the data collection system using a sensor extension cable. If already not done so a drop of glycerin was put on the barbed end of a quick-release connector and that end was put into a short piece of plastic tuning that came with the sensor. Another drop of glycerin was added
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