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(Solved): Write the experimental procedure in the form of a methodology. Follow these steps: 1. Use the past t ...



Write the experimental procedure in the form of a methodology. Follow these steps: 1. Use the past tense to describe what you did 2. While active voice can be used, passive voice is often preferred in scientific writing as it emphasizes the actions taken rather than the actor 3. Provide enough detail so that another researcher could replicate your experiment. 4. Do not use bullet points, write in full sentences Experimental procedure 1. Collect a digital thermometer and the simple calorimeter ( 400 mL beaker with two nested polystyrene coffee cups plus stirrer and lid). Clean and dry the polystyrene cups. Insert the nested cups in the 400 mL beaker 2. Find the mass of the empty calorimeter with stirrer and lid (use a top-pan balance), and record in table 1.1 of the report sheet. 3. With a measuring cylinder, add about 70 mL of distilled water to the calorimeter, cover with the lid and insert the stirrer. Determine the mass of calorimeter with the water and stirrer and lid, and record in table 1.1 of the report sheet. 4. Stir the water in the calorimeter and record its temperature in table 1.1. 5. Collect about 40 g of ice in a small beaker. The ice should have become a little wet. This indicates that it has started melting and that its temperature is \( 0^{\circ} \mathrm{C} \). Carefully pat the ice dry with some tissue paper and add it to the calorimeter. Cover with the lid. 6. Regularly stir the contents of the calorimeter, and allow to equilibrate at \( 0^{\circ} \mathrm{C} \). Some ice should remain in the calorimeter. If no ice remains, add some more to the calorimeter, stir and allow to equilibrate at \( 0^{\circ} \mathrm{C} \). (Make sure that the ice added is at \( 0^{\circ} \mathrm{C} \) - see step 4.) Record this final temperature in table 1.1. 7. Determine the mass of a 250 mL beaker on the top-pan balance and record in table 1.1. 8. Carefully pour the water from the calorimeter into the beaker from step 6 , holding back the ice that has remained. Determine the mass of the 250 mL beaker with water and record in table 1.1. 9. Repeat the experiment to give you a total of two trials. 10. Calculate the enthalpy of fusion of ice following the steps indicated in the Report sheet.



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