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12 Nov 2019
The figure 7.1 is included after the questions involving 7.1, but I need help with all of the questions please.
1. In order to determine the At for the neutralization reaction, you will be extrapolating temperature data from before mixing and after mixing a. What does extrapolation mean? b. Determine the temperature change in figure c. In your experiment, you will use Excel and plot the before mixing and after mixing data as individual lines. How would you determine the temperature at a particular time point? What would you need to include on your plots? 2. The addition of 50 mL of 2.02 NaOH to 50 mL of 2.00 M HNO3 at 22.0 °C results in a maximum temperature of 36.1 °C with a total mass of the solution of 100.0 g Calculate the molar heat of neutralization and compare it to the result calculated from Hess's law (see data in Introduction and background) 3. Construct a table for each of your 4 runs in your "Procedure and In-lab" section to take down the temperature at appropriate time points. There will be one dataset for temperature before mixing and one for temperature after mixing. Remember that you are not measuring the temperature at the actual mixing event. 4. MAKE A PREDICTION: In which run(s) do you expect the temperature to change the most? What variable in this(ese) run(s) is making the impact?
The figure 7.1 is included after the questions involving 7.1, but I need help with all of the questions please.
1. In order to determine the At for the neutralization reaction, you will be extrapolating temperature data from before mixing and after mixing a. What does extrapolation mean? b. Determine the temperature change in figure c. In your experiment, you will use Excel and plot the before mixing and after mixing data as individual lines. How would you determine the temperature at a particular time point? What would you need to include on your plots? 2. The addition of 50 mL of 2.02 NaOH to 50 mL of 2.00 M HNO3 at 22.0 °C results in a maximum temperature of 36.1 °C with a total mass of the solution of 100.0 g Calculate the molar heat of neutralization and compare it to the result calculated from Hess's law (see data in Introduction and background) 3. Construct a table for each of your 4 runs in your "Procedure and In-lab" section to take down the temperature at appropriate time points. There will be one dataset for temperature before mixing and one for temperature after mixing. Remember that you are not measuring the temperature at the actual mixing event. 4. MAKE A PREDICTION: In which run(s) do you expect the temperature to change the most? What variable in this(ese) run(s) is making the impact?
Deanna HettingerLv2
7 Feb 2019