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4. The water never reached the boiling point because, unfortunately, the student stopped recording data before the water began to boil. According to the trendline, how much time would have elapsed before the water boiled (100.0°C)? Show the calculation here and insert a text box and arrow to identify this point on the graph. Time to boiling point

4. The water never reached the boiling point because, unfortunately, the student stopped recording data before the water began to boil. According to the trendline, how much time would have elapsed before the water boiled (100.0°C)? Show the calculation here and insert a text box and arrow to identify this point on the graph. Time to boiling point

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Answer only question 4 and 5. Thank you
1. Using Excel, set up a spreadsheet with the following data and prepare a graph which includes a linear regression analysis with the trendline displayed on the graph: Time(sec) Temp (°C) 30.0 27.3 60.0 40.2 90.0 53.7 120.0 67.4 150.0 79.8 180.0 91.3
Transcribed Image Text:1. Using Excel, set up a spreadsheet with the following data and prepare a graph which includes a linear regression analysis with the trendline displayed on the graph: Time(sec) Temp (°C) 30.0 27.3 60.0 40.2 90.0 53.7 120.0 67.4 150.0 79.8 180.0 91.3
Part B: QUESTIONS from Excel Graphing Exercise Use the results of the linear regression analysis to answer the following questions. 1. Express the mathematical function for the straight line with the correct number of significant figures in the slope and y-intercept. y = 2. What was the rate of heating for this sample of water (°C/sec)? Rate of Heating 3. Show a calculation or explain how to determine the initial temperature of the water (at the beginning of the experiment, before any data was collected) using the linear regression analysis. Include a correct unit label. Initial Temperature 4. The water never reached the boiling point because, unfortunately, the student stopped recording data before the water began to boil. According to the trendline, how much time would have elapsed before the water boiled (100.0°C)? Show the calculation here and insert a text box and arrow to identify this point on the graph. Time to boiling point 5. What was the temperature of the water after 100.0 seconds of heating? Show the calculation here and insert a text box and arrow to identify this point on the graph. Temperature after 100.0 s 55 26
Transcribed Image Text:Part B: QUESTIONS from Excel Graphing Exercise Use the results of the linear regression analysis to answer the following questions. 1. Express the mathematical function for the straight line with the correct number of significant figures in the slope and y-intercept. y = 2. What was the rate of heating for this sample of water (°C/sec)? Rate of Heating 3. Show a calculation or explain how to determine the initial temperature of the water (at the beginning of the experiment, before any data was collected) using the linear regression analysis. Include a correct unit label. Initial Temperature 4. The water never reached the boiling point because, unfortunately, the student stopped recording data before the water began to boil. According to the trendline, how much time would have elapsed before the water boiled (100.0°C)? Show the calculation here and insert a text box and arrow to identify this point on the graph. Time to boiling point 5. What was the temperature of the water after 100.0 seconds of heating? Show the calculation here and insert a text box and arrow to identify this point on the graph. Temperature after 100.0 s 55 26
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