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Sunday, March 3, 2019

Investigation of Enthalpy Change When Mg is added to HCl Essay

Research QuestionHow is the enthalpy tilt of the reaction between Mg and HCl affected when contrary amount of moneys of Mg are added to a constant amount of HCl?VariablesIndependent MgDependent TemperatureControl HClControlling VariablesI depart use three different masses of Mg 0.02g 0.001g, 0.03g 0.001g, 0.04g 0.001gI get tabu taproom the temperature using a colorimeter made from a form bubbles form, a lid, and a thermometerI will keep HCl at a constant volume of 10mL of 1M HClProcedureStep 1 Measure out 10mL of 1M HClStep 2 Pour HCl into foam cup and place lid on cupStep 3 Measure the initial temperature and constitution dataStep 4 Add in 0.02g of Mg into cup and measure the finial temperatureStep 5 Calculate transmit in temperature by subtracting the initial temperature from the finial temperatureStep 6 Repeat steps 1-5 8 more eons for a total of 9 trails changing the mass of Mg in step 4 every 3 trails from 0.02g 0.001g to 0.03g 0.001g to 0.04g 0.001g.Conclu sion and military rankThe results depicted a small correlation between the enthalpy tilt in the reaction between Mg and HCl when different amounts of Mg are added to a constant amount of HCl. The add up enthalpy change of the different masses of Mg are not consistently changing. When the amount of Mg shifts from 0.02g 0.001g to 0.03g 0.001g the average enthalpy changes from 453.27 kJ/mol to 406.77 kJ/mol but when it shifts form 0.03g 0.001g to 0.04g 0.001g the average enthalpy changes from 406.77 kJ/mol to 418.4 kJ/mol. Now the answer to the question -How is the enthalpy change of the reaction between Mg and HCl affected when different amounts of Mg are added to a constant amount of HCl? Is there is an effect to the enthalpy change when different amounts of Mg are added but it is irregular and the change in the enthalpy isnt steady in its rise or decline.The experimentation was done using different foam cups and a calorimeter and the amount of time that the chemicals temper atures were recorded were different. If I was to improve this experiment I would use the homogeneous kind of foam cups and lids for each trial and I would also measure the temperature for each chemical under a specific time enclosure which would be the same for each trial.Investigation of Enthalpy Change When Mg is added to HCl

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